# A bicyclist moving at a constant speed takes 10.0 seconds to travel 500 meters down a path inclined 30.0° downward from the horizontal. What is the vertical velocity of this motion?

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### Physics

A bicyclist moving at a constant speed takes 10.0 seconds to travel 500 meters down a path inclined 30.0° downward from the horizontal. What is the vertical velocity of this motion?

### physics

A bicyclist moving at a constant speed takes 10.0 seconds to travel 500 meters down a path inclined 30.0° downward from the horizontal. What is the vertical velocity of this motion?Select one of the options below as your answer: A. 18.3 meters/second B. 43.3 meters/second C. ...

### physics

A sled is moving at a constant speed down a surface inclined at 45.0° with the horizontal and travels 30 meters in 4 seconds. Calculate the vertical velocity of the sled at the end of 4 seconds.

### physics

A sled is moving at a constant speed down a surface inclined at 45.0° with the horizontal and travels 30 meters in 4 seconds. Calculate the vertical velocity of the sled at the end of 4 seconds.

### physics

A sled is moving at a constant speed down a surface inclined at 45.0° with the horizontal and travels 30 meters in 4 seconds. Calculate the vertical velocity of the sled at the end of 4 seconds.

### physics

A projectile MUST____. List all that apply. a) experience a net downward force b) have a constant speed c) be accelerating d) be changing its velocity e) be moving downward f) have a horizontal motion in addition to a vertical motion

### physics

A projectile MUST____. List all that apply. a) experience a net downward force b) have a constant speed c) be accelerating d) be changing its velocity e) be moving downward f) have a horizontal motion in addition to a vertical motion

### Physics

A bicyclist is coasting straight down a hill at a constant speed. The mass of the rider and bicycle is 85.0 kg, and the hill is inclined at 19.0° with respect to the horizontal. Air resistance opposes the motion of the cyclist. Later, the bicyclist climbs the same hill at the...

### Physics

A bicyclist is coasting straight down a hill at a constant speed. The mass of the rider and bicycle is 55.0 kg, and the hill is inclined at 16.0° with respect to the horizontal. Air resistance opposes the motion of the cyclist. Later, the bicyclist climbs the same hill at the...

### Physics

A train moving at a constant speed on a surface inclined upward at 10.0° with the horizontal travels a distance of 400 meters in 5 seconds. Calculate the vertical velocity component of the train during this time period.

### Physics (acceleration)

1. Jasmine rode a horse down a path headed north. she started from rest and then accelerated at 0.5 m/s2 for 12 seconds and then travelled at a constant speed for 28 seconds. a.) what was her velocity after 12 seconds? b.) what was jasmines displacement after 10 seconds? c.) ...

### physical science

A car starts from rest and accelerates uniformly for 250 meters. It then moves with a constant velocity for 500 meters and slows down to rest in 300 meters. The whole trip takes 50 seconds. How long did the car move at constant velocity?

### Physics

A car of mass 1200kg starts from rest, accelerates uniformly to a speed of 4.0 meters per second in 2.0 seconds and continues moving at this constant speed in a horizontal straight line for an additional 10 seconds. the brakes are then applied and the car is brought to rest in...

### Physics

a 2 centimeter diameter ball of 50 grams rolls at constant velocity across a table. it takes 4 seconds to travel 3 meters. Sketch graph of horizontal position, velocity and acceleration.

### PHYSICS

If a cart is released from rest at a 10 meter incline and takes 28 seconds to travel down this incline. 1. Calculate the average speed of the cart? 2. calculate the instantaneous velocity of the cart at the end of the 10 meters(this value should be twice the value in question ...

### PHYSICS

If a cart is released from rest at a 10 meter incline and takes 28 seconds to travel down this incline. 1. Calculate the average speed of the cart? 2. calculate the instantaneous velocity of the cart at the end of the 10 meters(this value should be twice the value in question ...

### physics

A 800·kg elevator is attached to a cable whose tension is 7800·N. Which of the following statements could describe the motion of the elevator? Choose all that apply. slowing down as it moves upward moving upward at constant speed speeding up as it moves downward slowing down...

### physics

projectile motion with constant horizontal speed ? A stone falls off a cliff with horizontal velocity v m/s. it falls a distance of 5cm vertically and 200m horizontally in t seconds. when it has fallen a vertical distance of 20cm, what is its horizontal distance from the cliff...

### Physics

A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second, calculate its vertical displacement after 21.0 seconds.

### physics

A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second, calculate its vertical displacement after 21.0 seconds.

### physics

A Martian rover is moving up a hill sloped at 30.0° with the horizontal. If it has a constant velocity of 1.50 meters/second, calculate its vertical displacement after 21.0 seconds

### Physics

A bicyclist is coasting straight down a hill at a constant speed. The mass of the rider and bicycle is 80 kg and the hill is inclines at 15 degrees with respect to the horizontal. Air resistance opposes the motion of the cyclist. Later, the bicyclist climbs the same hill at ...

### physics

A 1500 kg car at rest rolls down a hill inclined at 10 degrees with the horizontal. A 400 N friction force opposes its motion on the inclined plane and a 600 N on the horizontal surface a) how fast will it be moving at point B b) how far from point C will it travel before ...

### Projective Motion Problem

Darryl Strawberry hits a baseball with a horizontal velocity of 45 m/s and a vertical velocity of 25 m/s... Find the time it takes for the ball to travel to the highest point Find the total time the ball is in flight Find the range Find the max height the ball reaches Does it ...

### Physics

A bicyclist is coasting down a road that is sloped downward at an angle of 8°. The bicycle and bicyclist have a total mass of 80 kg. If the bicycle wheels roll freely, without any effect from friction or air resistance slowing the motion, how fast would the bicyclist accelerate?

### Physics

If you throw a ball into the air at some angle with respect to the horizontal, which of the following statements about the ball is true? The acceleration is zero at the top of the motion The horizontal component of the velocity is zero at the top of the motion The velocity is ...

### Physics

A plane, diving with constant speed at an angle of 52.0° with the vertical, releases a projectile at an altitude of 790 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive horizontal direction, ...

### Physics

A plane, diving with constant speed at an angle of 52.0° with the vertical, releases a projectile at an altitude of 790 m. The projectile hits the ground 6.00 s after release. (Assume a coordinate system in which the airplane is moving in the positive horizontal direction, ...

### Physics

A car accelerates from rest at 5 m/s^2 for 5 seconds. It moves with a constant velocity for some time, and then decelerates at 5 m/s^2 to come to rest. The entire journey takes 25 seconds. Plot the velocity-time graph of the motion. They don't give me a graph so I made one. I ...

### Physics

A golf ball is hit into the air, but not straight up, and encounters no significant air resistance. Which statements accurately describe its motion while it is in the air? A.On the way up it is accelerating upward, and on the way down it is accelerating downward. B.On the way ...

### math

An object that is tossed downward with an initial speed (velocity) of will travel a distance of s meters, where and t is measured in seconds. Solve for t.

### PHYSICS

Please help and let me know if I did something wrong. If a cart is released from rest at a 10 meter incline and takes 28 seconds to travel down this incline. 1. Calculate the average speed of the cart? I wrote s=ad/at=10m/28 sec = 357 m/s 2. calculate the instantaneous ...

### physical

A biker rides on an upward-sloped road inclined at a 15.0° angle with the horizontal. If he moves at a constant speed of 2.0 meters/second for 60 seconds, what is the magnitude of his horizontal displacement?

### physics

A biker rides on an upward-sloped road inclined at a 15.0° angle with the horizontal. If he moves at a constant speed of 2.0 meters/second for 60 seconds, what is the magnitude of his horizontal displacement?

### Physical Science

1.Instantaneous speed is measured B. when the object reaches its destination. C. at a particular instant. D. over the duration of the trip. 2. A ball is rolled uphill a distance of 5 meters before it slows, stops, and begins to roll back. The ball rolls downhill 9 meters ...

### Physics

A rock dropped from a small bridge encounters no air resistance and hits the pond below 1.0 s later. If it had been thrown horizontally with a speed of 10m/s , then it would have hit the water A. more than 1.0s later, since it has a greater distance to travel. B. 1.0s later, ...

### physics

a bus moving at 20m/s slows at a rate of 4m/s each second. how far does it travel while braking. i found the time which was 5 seconds. A car accelerates from rest at a rate of 5 m/s/s for a period of 4.2 seconds and then moves at a constant speed for 8 seconds more. how far ...

### Physics

The drawing shows a skateboarder moving at v = 5 m/s along a horizontal section of a track that is slanted upward by 48° above the horizontal at its end, which is h = 0.52 m above the ground. When she leaves the track, she follows the characteristic path of projectile motion...

### Physics

In class, we completed a lab dealing with the range of a projectile. First, we dropped a metal ball down an inclined channel followed by a horizontal channel. We timed the ball on the horizontal channel and used this time and the channel length to find horizontal velocity of ...

### Science - Physics

When a projectile is fired horizontally, which of the components of its motion is (A) motion at constatnt speed (B) uniformly accelerated motion (C) If the initial velocity of the projectile is increased, what effect will this have on the time it takes the projectile to fall ...

### physics

A rocket is fired vertically and reaches a speed of 34.3 m/s in half a second. One and a half seconds later the rocket’s speed is 19.6 m/s. Find the acceleration (in m/s2) and initial velocity (in m/s) of the rocket. Complete the equation of motion for the velocity of the ...

### physics

A skateboarder is approaching a set of stairs at a speed of 8 m/s. The stairs drop a vertical distance of h=3 meters and take up a horizontal distance d=5 meters. As the skater reaches the edge she can give herself a vertical component of velocity by jumping. Note: this does ...

### Science

Assume you are speeding down the freeway at 75 mph. The car weighs 1500 kg and the effective force of the brakes is 14400 N. The car in front of you suddenly slows down, it takes 3 seconds for the car to do so. Your initial velocity was 33.53 and your final velocity is 0. If ...

### Physics

A 5-kg container slides down an incline at an angle of 28 degrees. If the coefficient of kinetic friction is 0.4, what is the container's acceleration when it slides down the incline, and how long does it take for the container to travel 14 meters? (Use seconds as the unit of ...

### Physics

A 5-kg container slides down an incline at an angle of 28 degrees. If the coefficient of kinetic friction is 0.4, what is the container's acceleration when it slides down the incline, and how long does it take for the container to travel 14 meters? (Use seconds as the unit of ...

### Science, Physics

Assume you are speeding down the freeway at 75 mph. The car weighs 1500 kg and the effective force of the brakes is 14400 N. The car in front of you suddenly slows down, it takes 3 seconds for the car to do so. Your initial velocity was 33.53 and your final velocity is 0. If ...

### rates

a bicyclist travels for 2h at an average speed of 12km/h. how far does the bicyclist travel ? at this speed how long will it take the bicyclist to at 54km?

### math

The Great seto Bridge in Japan is 9,368 meters long. A bicyclist riding across the bridge can travel 500 meters in 1 minute. A person walking can travel 100 meters in 1 minute. How many minutes shorter is the bicycle trip than the walk?

### Physics

A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 25.2 m/s A 1.0-kg stone is thrown from the basket with an initial velocity of 11.7 m/s perpendicular to the path of the descending balloon, as measured relative to a person at rest in ...

### Physics

A descent vehicle landing on Mars has a vertical velocity toward the surface of Mars of 6.0 m/s. At the same time, it has a horizontal velocity of 3.5 m/s. At what speed does the vehicle move along it's decent path? At what angle with the vertical is this path?

### Physics

The distance time graph shows a cart moving at a straight path. a. Describe the speed of the cart between: 1.) A and B - The cart is moving with constant speed for 10 seconds and it is now at rest for 20 seconds. 2.) B and C - The cart at rest for 20 seconds will now start ...

### Physics

An object moves in a circular path with constant speed. Is the object's velocity constant? Is its acceleration constant? Please explain. From what I've learned in my 8th grade science class, when velocity changes is when the direction or speed changes. So if it is moving in a ...

### physics

a car of mass 1200 kg starts from rest, accelerates uniformly to a speed 4ms-1 in 2 seconds and continues moving at this constant speed in a horizontal straight line for additional 10s. the brakes are then applied and the car is brought to rest in 4s. a constant resistance ...

### Science

Starting from rest an airplane moves with a constant acceleration of 2m/s for 30 seconds before it takes off A. How far does it travel down the runway before it takes off ? B. What's it's final velocity ?

### physics

A car of mass 1200 kg starts from rest, accelerates uniformly to a speed of 4.0 m/s in 2.0 s and continues moving at this constant speed in a horizontal straight line for an additional 10 s. The brakes are then applied and the car is brought to rest in 4.0 s. A constant ...

### trigo

A submarine at the surface of the ocean makes an emergency dive, its path making an angle of 21deg with the surface. a. If it goes for 300 meters along its download path, how deep will it be? What horizontal distance is it from its starting point? b. How many meters must it go...

### Physics

Mutiple choice: A car travelling at 10 m/s accelerates at 3 m/s^2. Its new velocity is A.) 12 m/s B.) 22m/s C.) 17 m/s D.) Can not be determined. Which of the following is not acceleration? A.) rate of change of speed in a particular direction B.) rate of change of motion in a...

### physical science 2

It takes 6 seconds for a stone dropped from rest to the bottom of a well,what is its final speed A; 6 meters/second B: 30 meters/seconds C: 36 meters/seconds D: 60 METERS/SECONDS A is incrrect

### physics-finding velocity

A small block of mass .450 kg is sliding down a ramp inclined at an angle of 53 degrees to the horizontal. it starts to slide from a vertical height of .65 meters. Find the Velocity when it slides off the ramp. The way I approached this problem was by sing Vf^2-VI^2=2ad. ...

### Dan

Darryl Strawberry hits a baseball with a horizontal velocity of 45 m/s and a vertical velocity of 25 m/s... Find the time it takes for the ball to travel to the highest point Find the total time the ball is in flight Find the range Find the max height the ball reaches Does it ...

### Math - Calculus

The horizontal velocity is constant. (Ignore air resistance.) Recall from your study of trigonometry that if you release a rock at a speed v in a direction that makes an angle α with the horizontal, then the initial vertical velocity vv and the horizontal velocity vh are ...

### physics

The position vector r of a particle moving in the xy plane is r=2ti+2sin[(pi/4)t]j , with is in meters and t in seconds. (a) Calculate the x and y components of the particle's position at , and 4.0 s and sketch the particle's path in the plane for the interval . (b) Calculate ...

### Physc

A symmetric projectile spends a total of 20 seconds in the air. It reaches a peak height of 8 meters. HOw long it takes to reach its peak height? The projectile has a range of 80 meters.What is its horizontal velocity? What is the projectile's horizontal acceleration? What is ...

### Physics

A vacant, 1560 kg car begins from rest and rolls 46 meters down an inclined plateau before rolling off the edge and crashing into the sea below. The plateau is at a constant downward angle of 12.4 degrees with the horizontal. The coefficient of rolling friction between the car...

### phyics

Consulting the graph shown in (Figure 1) , determine the object's average velocity over the time interval from 2 to 4 seconds. Express your answer in meters per second to the nearest integer. Position versus time graph for an object traveling with a non-constant velocity. The ...

### Physics

A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 35.4 m/s. At the same time, it has a horizontal velocity of 57.2 m/s. At what speed does the vehicle move along its descent path? At what angle with the vertical is its path?

### Physics help!!

A descent vehicle landing on the moon has a vertical velocity toward the surface of the moon of 35.4 m/s. At the same time, it has a horizontal velocity of 57.2 m/s. At what speed does the vehicle move along its descent path? At what angle with the vertical is its path?

### Physics

A car moves in a circular path at 15 mph. Which of the following statements about the cars motion would be correct? a. The cars acceleration is constant. b. The cars velocity is constant. c. The cars speed is constant. d. The cars velocity and speed are constant.

### Physics

A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.8 m/s and the tension in the rope is T = 21.7 N. 1)Now a peg is placed 4/5 of the way down the ...

### physics

A child on a sled (total mass 41 kg) slides down a hill inclined at an angle θ = 22° at a constant speed 3.5 m/s. (a) How long does it take the child to travel 40 meters down the slope? (b) What is the frictional force on the sled? (c) What is the coefficient of friction...

### phyics

Consulting the graph shown in (Figure 1) , determine the object's average velocity over the time interval from 2 to 4 seconds. Express your answer in meters per second to the nearest integer. Position versus time graph for an object traveling with a non-constant velocity. The ...

### Physics

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 0.8 m/s2 for 4.4 seconds. It then continues at a constant speed for 13.5 seconds, before getting tired and slowing down with constant ...

### Algebra

Radio signals travel at a rate of 3*10^8 meters per second. How many seconds would it take for a radio signal to travel from a satellite to the surface of Earth if the satellite is orbiting at a height of 4.2*10^7 meters? (Hint: Time is distance divided by speed.) a. 1.26*10^...

### AP Physics

1. A car is traveling down the road at a constant speed of 11 km/h. At time zero it is forced to stop. The driver slams on the brakes and the car travels 18 m as it uniformly accelerates, coming to a stop. The car remains at rest for 5.0 seconds. Then the driver shifts into ...

### Physic

A tortoise and hare start from rest and have a race. As the race begins, both accelerate forward. The hare accelerates uniformly at a rate of 1.5 m/s^2 for 4.1 seconds. It then continues at a constant speed for 11.9 seconds, before getting tired and slowing down with constant ...

### physics

a 75-kilogram bicylcist coasts down a hill at a constant speed of 12 meters per second. what is the kinetic energyof the bicyclist?

### physics

A plane is flying horizontally at a height of 500 m and a constant speed of 429 km/h when an object is projected vertically downward at an initial speed of 35.0 m/s. If air resistance is neglected, the average vertical component of velocity between the object's release and its...

### physics

Farhan tosses a ball upwards with an initial velocity of 13.0 m/s. What is the direction of motion of the ball 2.4 seconds after he threw it? type "up" if it is moving up and "down" if it is moving down

### Physics

A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?

### Physics

A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity?

### PHYSICS

A 20 kg wagon is pulled along the level ground by a rope inclined at 30 deg above horizontal. A frictional force of 30 N opposes the motion, how large is the pulling force if the wagon is moving at constant velocity.

### Physics

A car with a mass of 1815 kg is traveling down a road for 50 meters. It takes the car five seconds to travel this distance. Calculate the velocity, momentum, and kinetic energy of the car.

### physics

A fisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. It takes a time of 2.60 for the boat to travel from its highest point to its lowest, a total distance of 0.620 . The fisherman sees ...

### physics

the peregrine falcon is the world's fastest known bird and has been clocked driving downward toward its pray at a constant vertical velocity of 97.2 meters per second. If the falcon drives straight down from a height of 100 meters, how much time does this give a rabbit below ...

### Calculus

Sorry this is really long. Just wondering how I would do each of these A particle is moving with velocity v(t) = t^2 – 9t + 18 with distance, s measured in meters, left or right of zero, and t measured in seconds, with t between 0 and 8 seconds inclusive. The position at ...

### Physics

A 20.0-kg crate sits at rest at the bottom of a 20.0 m -long ramp that is inclined at 40 ∘ above the horizontal. A constant horizontal force of 290 N is applied to the crate to push it up the ramp. While the crate is moving, the ramp exerts a constant frictional force on it ...

### Physics

If a car is moving on a highway at 70 kilometers per hour, going south, and then turns to travel 70 kilometers per hour east, what happens to its speed and velocity? Speed is constant, velocity is constant. Speed is changing, velocity is constant. Speed is changing, velocity ...

### physics

For an interesting physics field trip, we visit Tahquamenon Falls in the Upper Peninsula. We measure the horizontal speed of the water at the top of the falls to be 3.98 m/s. How far vertically below the top edge of the falls does the velocity vector of the water point ...

### Physics

A 55 kg ice skater, initially at rest on a flat skating rink, requires a 198 N horizontal force to be set in motion. However, after the skater is in motion, a horizontal force of 175 N keeps her moving at a constant velocity. Find the coefficients of static and kinetic ...

### Physics

A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.4 m/s and the tension in the rope is T = 15.5 N. A peg is placed 4/5 of the way down the pendulum’s ...

### algebra

A jogger leaves home and runs at a constant speed of 4 miles per hour. Nine minutes later, a bicyclist follows along the same route at a constant speed of 15 miles per hour. Find the bicyclist's travel time needed to catch the jogger.

### Physics HELP

1.If a particle moves in a plane so that its position is described by the functions x=A*cos(wT) and y=A*sin(wT), the particle is ( w-angular velocity, T-period) A) moving with constant speed along a circle B) moving with a varying speed along a circle Thanx! Note that x^2 + y^...

### physics

speed of blood flow is 30 cm/s near the heart, but only 20 cm/s at a point 40 cm farther along the arterial pathway. a. how do you find the velocity for that 40 cm distance? b. the time it takes the blood to flow 40 cm? a. The average velocity over the 40 cm distance is 25 cm/...

### PHYSICS

1. A 15 kg child sits in a swing that is attached in ropes 1.6 m long . Find the potential energy of the child relative to his lower position when the ropes (a) are horizontal (b) vertical and (c) make 30° with the horizontal. 2. A brick of mass 1.50 kg is placed on top of a ...

### physics

. A ball, initially at rest at t= 0 seconds, rolls with constant acceleration down an inclined plane 10 meters long. If the ball rolls 1 meter in the first 2 seconds, how far will it have rolled at t= 4 seconds?

### physics

2. a body of mass 20kg is released from rest t the top of a rough slope which is inclined at 30 degrees to the horizontal.six seconds later the body has a velocity of 21 m.s down the slope. find the resistance to motion in newtons experienced by the body?

### Math

Plane A and B ate both flying eastward with constant velocity in the same horizontal plane at angles 30 degrees and 60 degrees with respect to the horizontal respectively. The speed of A is 100 square root of 3 miles per second. Initially, the pilot of plane A sees plane B ...

### Physics

A bicyclist starts from rest and accelerates at 4 m/s^2 for 3 seconds. The cyclist then travels for 20s at a constant speed. How far does the cyclist travel? I got 138 m but I'm not sure if I'm right?

### physics

A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.3 m/s and the tension in the rope is T = 22.4 N. Now a peg is placed 4/5 of the way down the pendulum...