# A car initially traveling at 34.4 m/s undergoes a constant negative acceleration of magnitude 1.50 m/s2 after its brakes are applied.

74,432 results, page 26

### physical science

A car goes around a curve (the arc is part of a circle with a radius of 25 ft.) with a speed of 20.0 ft/sec. What is the magnitude of acceleration?

### physics

Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied, retarding the upward motion of m1. If m1 = 5.30 kg and m2 = 10.60 kg, what value of f will reduce the acceleration of the system by 50%? thanks!

### Physics

Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied, retarding the upward motion of m1. If m1 = 5.30 kg and m2 = 10.60 kg, what value of f will reduce the acceleration of the system by 50%? thank you!

### science , physics

A person is riding a bicycle, and its wheels have an angular velocity of +15.5 rad/s. Then, the brakes are applied and the bike is brought to a uniform stop. During braking, the angular displacement of each wheel is +15.5 revolutions. (a) How much time does it take for the ...

### physics

A skateboarder, starting from rest, rolls down a 13.9-m ramp. When she arrives at the bottom of the ramp her speed is 6.06 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 33.2 ° with respect to the ground, what is ...

### physics

A skateboarder, starting from rest, rolls down a 13.4-m ramp. When she arrives at the bottom of the ramp her speed is 6.14 m/s. (a) Determine the magnitude of her acceleration, assumed to be constant. (b) If the ramp is inclined at 32.6 ° with respect to the ground, what is ...

### 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.

### AP Physics

A car slows down from 18 m/s to rest in a distance of 91 m. What was its acceleration, assumed constant?

### physics

A car travels in a straight line for 3.7h at a constant speed of 63 km/h. What is the acceleration? Answer in m/s^2

### Science

a car is moving at 80km/hr and slows down to 13km/hr in 9.75 seconds. Calculate the car's acceleration Formula for acceleration= Final speed-Initial/Time

### Physics

An astronaut on a distant planet wants to determine its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of + 14.2 m/s and measures a time of 22.2 s before the rock returns to his hand. What is the acceleration (magnitude and direction) due ...

### physics

a car is driving at 95 km/h down a highway when a deer runs infront of the car 80 m ahead. if the driver immediately applies the brakes and slows down at 4.2m/s^2, what happens?

### Algebra

1) If N is the set of natural numbers that are factors of 18, represent this set in roster form. 2) Suppose U={1,2,3,4,5,6,7,8,9,10} is the universal set and A={1,4,5,9,10} What is A? 3) The wrestling team is holding a car wash. The teams goal is to raise at lease 252 and each...

### Algebra

1) If N is the set of natural numbers that are factors of 18, represent this set in roster form. 2) Suppose U={1,2,3,4,5,6,7,8,9,10} is the universal set and A={1,4,5,9,10} What is A? 3) The wrestling team is holding a car wash. The teams goal is to raise at lease 252 and each...

### Algebra

1) If N is the set of natural numbers that are factors of 18, represent this set in roster form. 2) Suppose U={1,2,3,4,5,6,7,8,9,10} is the universal set and A={1,4,5,9,10} What is A? 3) The wrestling team is holding a car wash. The teams goal is to raise at lease 252 and each...

### Physics

When a driver brakes an automobile, the friction between the brake drums and the brake shoes converts the car's kinetic energy to thermal energy. If a 1750-kg automobile traveling at 28 m/s comes to a halt, how much does the temperature rise in each of the four 8.0 kg iron ...

### Physics

A car can be driven around a 120 m radius curve at constant speed without sliding if the maximum centripetal acceleration is 0.130g. (a) What is the maximum speed that the car can travel around the curve without sliding? (b) If the car was on a circular race track with this ...

### Physics

An applied force of 50 N at an angle of 47.5 degrees up of East is applied to a 7.25 kg crate. Find the coefficient of friction if acceleration is 3.0 m/s/s E. a. 0.28 b. 0.42 (I know this one is wrong) c. 0.56 d. 0.35 e. 0.49

### Physics

A 2kg object is attached to a spring and undergoes simple harmonic motion. At t=0 the object starts from rest, 10 cm from the equilibrium position. If the force constant of the spring k is equal to 75 N/m, calculate a. the max speed b. the max acceleration of the object. Fine ...

### Physics

A rifle bullet, traveling at "v1" strikes a large tree an penetrates to a depth of "d". the mass of the bullet is "m". assume the de-acceleration is constant as it penetrates the tree. a) the time required to stop. b) the de-acceleration of the bullet. c) the force the tree ...

### Calculus (RATE OF CHANGE)

Two cars leave a town at the same time and travel at constant speeds along straight roads that meet at an angle of 60° in the town. If one car travels twice as fast as the other and the distance between them increases at the rate of 81 mi/h, how fast is the slower car ...

### physics

At the moment car A is starting from rest and accelerating at 5.0 m/s2, car B passes it moving at a constant speed of 45m/s. How long will it take car A to catch up with car B?

### Physics

The driver in a car of total mass 800kg and which is travelling at 20m / s suddenly observes a stationary dog in his path 50m ahead . if the car brakes can exert a force of 2000N, what will likely happen

### physics

Rank these automobiles based on the magnitude of the impulse needed to stop them, from largest to smallest. 2000 kg car going 5m/s 500 kg car going 20 m/s 1000 kg car going20m/s 500 kg car going10m/s 1000 kg car going10/s 4000 kg car going 5m/s

### physics

The firetruck goes around a 180°, 162 m radius circular curve. It enters the curve with a speed of 12.6 m/s and leaves the curve with a speed of 38.8 m/s. Assuming the speed changes at a constant rate, what is the magnitude of the total acceleration of the firetruck just ...

### Physics

I don't see how I have enough information to answer this question If a car is traveling westward with a constant velocity of 20 m/s what is the net external velocity

### Science

A car is moving down a freeway in a straight line at a constant rate of 25 m/s. What is its acceleration?

### physics

A car travels in a straight line for 4.5 h at a constant speed of 61 km/h . What is its acceleration? Answer in units of m/s2.

### Physics

A car travels in a straight line for 5.4 h at a constant speed of 79 km/h . What is its acceleration? Answer in units of m/s2.

### physics

A car travels in a straight line for 4.9 h at a constant speed of 73 km/h . What is its acceleration? Answer in units of m/s2

### physics

A car travels in a straight line for 5 h at a constant speed of 73 km/h . What is its acceleration? Answer in units of m/s2

### Physics

A car travels in a straight line for 3.9 h at a constant speed of 83 km/h . What is its acceleration? Answer in units of m/s2

### Physics

A car travels in a straight line for 4.8 h at a constant speed of 63 km/h . What is its acceleration? Answer in units of m/s 2

### physics

A car travels in a straight line for 4.8 h at a constant speed of 57 km/h . What is its acceleration? Answer in units of m/s

### Physics

A car travels in a straight line for 4 h at a constant speed of 63 km/h. What is its acceleration? Answer in units of m/s^2?

### physics

A car travels in a straight line for 2.8 h at a constant speed of 53 km/h . What is its acceleration? Answer in units of m/s 2

### physics

A car travels in a straight line for 3.9 h at a constant speed of 63 km/h. What is its acceleration? Answer in units of m/s2

### Physics

A car travels in a straight line for 2.9 h at a constant speed of 77 km/h . What is its acceleration? Answer in units of m/s^2

### Physics

Q: A car travels in a straight line for 4.6 h at a constant speed of 95 km/h . What is its acceleration? Answer in units of m/s 2

### physics

According to the manual of a certain car, a maximum torque of magnitude 76.0 N · m should be applied when tightening the lug nuts on the vehicle. If you use a wrench of length 0.276 m and you apply the force at the end of the wrench at an angle of 75.00° with respect to a ...

### Niomi

A 7150 kg truck traveling east at 5 m/s collides with a 1650 kg car traveling 30 degrees south of west at 20 m/s.   After the collision at what angle do the two vehicles move.   Express you answer in degrees from the positive x-axis.  Use a coordinate where north is the +...

### Physics

A 7150 kg truck traveling east at 5 m/s collides with a 1650 kg car traveling 30 degrees south of west at 20 m/s.   After the collision at what angle do the two vehicles move.   Express you answer in degrees from the positive x-axis.  Use a coordinate where north is the +...

### Physics

What is the acceleration of a car that goes from 20 to 30 km/h in 1.5s? At the same acceleration, how long will it take the car to go from 30 to 36 km/h?

### Physics

What is the acceleration of a car that goes from 20 to 30 km/h in 1.5s? At the same acceleration, how long will it take the car to go from 30 to 36 km/h?

### physics

I need help understanding these, please. Thanks! 1. A 2 kg body moves with constant velocity when a force of 10 N is applied. What is the coefficient of kinetic friction between the table and the body? (Would I use F=m*g for this??) 2. Which of the following statements is ...

### physics : different question

Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest. 2000 kg car going 5m/s 500 kg car going 20 m/s 1000 kg car going20m/s 500 kg car going10m/s 1000 kg car going10/s 4000 kg car going 5m/s

### physics

A speeding motorist traveling 105 km/h passes a stationary police officer. The officer immediately begins pursuit at a constant acceleration of 11.0 km/h/s (note the mixed units). (a) How much time will it take for the police officer to reach the speeder, assuming that the ...

### physics

A 2.284 km car is moving down a road with a slope of 13% at a constant speed of 11 m/s. What is the direction and magnitude of the frictional force?

### physics

A truck on a straight road starts from rest and accelerates at 2.0 m/s2 until it reaches a speed of 20 m/s. Then the truck travels for 20 s at constant speed until the brakes are applied, stopping the truck in a uniform manner in an additional 5.0 s. (a) How long is the truck ...

### Science

1. A roach moves down the hall at 1.2 m/s. When he sees the janitor coming down the hall, he begins to run. After 3.2 s, he is moving at 3.6 m/s. What is his acceleration? 2. While waiting for his Mom to come out of the hairdresser's, Sean accidentally puts the car in gear and...

### Science

Abox of mass 60kg starts from the rest at height h and slides down a rough slope of length 10m, which makes an angle of 25 degree with the horizontal. It undergoes a constant accelequation of magnitude 2m/ while sliding down the slope. Calculate the work done on the box by the...