# A car starts from rest and travels for 7.0 s with a uniform acceleration of +2.2 m/s2. The driver then applies the brakes, causing a uniform acceleration of -1.0 m/s2. If the brakes are applied for 3.0 s, determine each of the following.

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**physics**

A 590 kg racing car completes one lap in 14.3 seconds around a circular track with a radios of 45.0 meters. The car moves at constant speed. (A) what is the acceleration of the car? (B) what force must the track exert on the tires to produse this acceleration?

**P**

A driver in a car traveling at a speed of 56 mi/h sees a deer 91.2 m away on the road. Calculate the magnitude of the acceleration necessary for the car to stop just barely missing the deer (assuming that the deer does not move in the meantime)

**Physics**

An aircraft on its take-off run has a uniform acceleration of 3m/s^2.What velocity does the aircraft gain in 4s?

**Physics**

A curve of radius 59.9 m is banked so that a car of mass 1.4 Mg traveling with uniform speed 50 km/hr can round the curve without relying on friction to keep it from slipping on the surface. At what angle is the curve banked? The acceleration due to gravity is 9.8 m/s2 * I ...

**fizik**

1. A sports car travelling east at 48.0 m/s passes a trooper hiding at the roadside. The driver uniformly reduces his speed to 22 m/s in 4.10 s a) Find the magnitude and direction of the car’s acceleration as it slows down b) Calculate the distance traveled during the 4.10 s...

**physics**

Starting from rest a car undergoes a constant acceleration of 6 m/s2. How far will the car travel in the first second?

**physics**

A car company states that their car can accelerate from rest to 70km/h in 7 seconds. What is the cars average acceleration?

**physics**

A car accelerates uniformly from rest to a speed of 73.6 mi/h in 7.68 s. Find the constant acceleration of the car. Answer in units of m/s 2

**Physics**

A 1000kg car is traveling along a level road at 20.00ms, when the brakes are applied long enough to do 50000 J of work. 1) what is the initial kinetic energy of the car? 2) if the car moved 100m while the brakes where applied, what was the average force exerted on the brakes.

**Physics**

A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.1 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad

**Physics**

A dentist's drill starts from rest. After 3.30 s of constant angular acceleration it turns at a rate of 2.1x10^4 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad

**physics**

A dentist's drill starts from rest. After 2.50 s of constant angular acceleration it turns at a rate of 3.0 104 rev/min. (a) Find the drill's angular acceleration. rad/s2 (b) Determine the angle (in radians) through which the drill rotates during this period. rad

**physics**

A bus accelerates at 2.4 m/s2 from rest for 10 s. It then travels at constant speed for 25 s, after which it slows to a stop with an acceleration of magnitude 1.5 m/s2. (a) What is the total distance that the bus travels? (b) What was its average velocity? If possible, could ...

**Physical**

A motor car travelling at 14m/s on dry flat surface should be able to stop in 14m.Assuming the deceleration to be uniform. Given: its value and the corresponding bracking time is -7m/s^2 , 2 sec Calculate the distance travelled during the first second after the application of ...

**physics**

a car travels at 25m/s on a slick road takes 4 second to come to a complete stop. what was the car's average acceleration over 4 second?

**English**

1. There is a set of basketball uniform next to the basketball. 2. There is basketball uniform next to the basketball. 3. There are basketball uniforms next to the basketball. 4. There is a set of basketball uniform next to the basketball. (When there is a uniform, both the ...

**Physics**

1.During a tennis serve,the top of the raquet,which is 15m from its pivot point,accelerats from rest to a speed of 10m/s in a time of 0.10s.Calculate the average tangential acceleration and the top of the racquet and also its angular acceleration. Tangential acceleration = ...

**physics**

a go cart starts at rest and accelerates to 40 m/s in 200m what is the acceleration of the cyclist?

**physics**

A bicycle starts from rest and reaches 6.0 m/s after 4 seconds. What is its acceleration?

**Physics**

A train travels between stations 1 and 2. The engineer of the train is instructed to start from rest at station 1 and accelerate uniformly between points A and B, then coast with a uniform velocity between points B and C, and finally accelerate uniformly between points C and D...

**Physics**

A train travels between stations 1 and 2. The engineer of the train is instructed to start from rest at station 1 and accelerate uniformly between points A and B, then coast with a uniform velocity between points B and C, and finally accelerate uniformly between points C and D...

**physics**

A truck driver attempting to deliver some furniture travels 5 km east, turns around and travels 5 km west, and then travels 12 km east to his destination. What distance has the driver traveled?

**cary collage**

"A 2.5-kg block slides down a 25 degree inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity reaches 0.65 m/s. The length of the incline is 1.6m. a) What is the acceleration of the block? b) What is the coefficient of ...

**physics**

A car is traveling 20m/s when the driver sees a child standing in the road. He takes 0.8s to react, then steps on the brakes and slows at 7.0m/s^2. How far does the car go before it stops? i don't know where to start.

**physics**

a car is traveling 20.0 m/s when the driver sees a child standing in the road. he takes 0.80 seconds to react, then steps on the brakes and slows at -7.0 m/s squared. how far does the car go before it stops?

**Physics**

A car traveling at 20m/s when the driver sees a child standing in the road. He takes 0.80s to react, then steps on the brakes and slows at 7.0m/s^2. How far does the car go before it stops?

**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**

Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(-1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive constants with suitable...

**Physics**

A toy slides down an inclined plane which makes an angle of 60 degrees with the horizontal. It starts from rest and achieves a final velocity of 8 m/s in 5 seconds at the bottom of the plane. a. What is the acceleration down the plane? b. What is the distance along the plane ...

**physics**

A driver in a car traveling at a speed of 70 mi/h sees a deer 90 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime).

**physics**

A train is traveling south at 25.6 m/s when the brakes are applied. It slows down with a constant acceleration to a speed of 6.90 m/s in a time of 8.38 s. What is the acceleration of the train during the 8.38-s interval?

**physics**

A car engine accelerates at a constant rate from 170 rpm to 3050 rpm in 7 seconds. I have found that at t=0, the angular velocity (omega)=17.8 rad/s, the angular acceleration (alpha)= 43.1 rad/s^2, the tangential acceleration = 7.76 m/s^2, and the centripetal acceleration is ...

**science physics**

A car slows to a stop with an average acceleration of - 3.0 m/s2. How long will it take to slow the car from 15 m/s to a position of rest?

**physics**

A solid sphere of uniform density starts from rest and rolls without slipping a distance of d = 3.4 m down a q = 29° incline. The sphere has a mass M = 3.7 kg and a radius R = 0.28 m. What is the magnitude of the frictional force on the sphere?

**physics**

The following table lists data for the speed and radius of three examples of uniform circular motion. Find the magnitude of the centripetal acceleration for each example.

**physics**

A car (mass = 750 kg) is initially moving with velocity 30 m/s. The driver slowly presses on the brakes and bring the car to a stop, traveling 50 m in the process. Calculate the force of friction between the car and the ground that brings it to a stop. Draw a free-body diagram...

**physics**

an object travels in a straight line at a constant acceleration for 6 seconds.in the first 2 seconds it travels 18 metres and in entire 6 seconds it covers 102 metres. find the acceleration.

**physics**

The combined mass of a race car and its driver is 600. kilograms. Traveling at a constant speed, the car completes one lap around a circular track of radius 160 meters in 36 seconds. A) Based on the given information, calculate the speed of the car. B) Calculate the magnitude ...

**physics**

In a game of shuffleboard, a disk with an initial speed travels of 3.2m/s travels 6.0m (a) what is the acceleration of the disk? (b) what is the coefficient of friction between the floor and the disk? So far I've gotten to the equation vf^2 - vi^2 = 2a(xf-xi) because time isn'...

**science**

a stone of mass 50g is being rotated in a circle of r 50cm with a uniform speed of 2m\s. what is the acceleration of the stone

**ssm**

a stone of mass 50g is being rotated in a circle of radius 50 cm with a uniform speed of 2 m/s what is the acceleration of the stone ?

**Science**

Project Work-Draw(x-t)graph on graph paper which represents a body is travelling with uniform acceleration.

**Science**

A free proton and a free electron are placed in a uniform electric field. Which of the 2 will experience a greater acceleration?

**Physics**

Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(-1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive constants with suitable...

**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

**mechanics**

please help solve these questions (1a). The gravitational field strength g on the earth’s surface is 9.8N/kg. explain what this means.(b) Using the law of gravity, show that gr2= k. Where g=gravitational field strength at a distance r from the center of the earth (r>Re), ...

**physics**

a car moving on a straight road with a speed of 20m/s. at t=0 the driver of the car applies the breaks after watching an obstacle 150m ahead. after application of breaks, the car retards with 2m/s^2. find the position of the car from the obstacle at t=15s.

**Physics**

A car traveling 51.1 km/h is 29.6 m from a barrier when the driver slams on the brakes. The car hits the barrier 3.08 s later. (a) What is the car's constant deceleration magnitude before impact? (b) How fast is the car traveling at impact?

**Science**

A car is moving at a constant velocity when it is involved in a collision.the car comes to rest after 0.45sec with an average acceleration of 65,0 m/s2 in the direction opposite that of the car's velocity. What was the speed ,in km/h, of the car before the collision?

**physics**

A uniform solid sphere rolls down an incline. (a) What must be the incline angle if the linear acceleration of the center of the sphere is to have a magnitude of 0.20g? 1° (b) If a frictionless block were to slide down the incline at that angle, would its acceleration ...

**physics**

A merry-go-round starts from rest and accelerates uniformly over 29.0 s to a final angular velocity of 5.35 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 4.50 m from the center. (b) Find the person's maximum radial acceleration. (c) Find ...

**physics**

A merry-go-round starts from rest and accelerates uniformly over 26.0 s to a final angular velocity of 5.50 rev/min. (a) Find the maximum linear speed of a person sitting on the merry-go-round 4.25 m from the center. (b) Find the person's maximum radial acceleration. (c) Find ...

**Physics**

A driver in a car traveling at a speed of 56.0 mi/h sees a deer 116 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime).

**Physics**

A driver in a car traveling at a speed of 56.0 mi/h sees a deer 116 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime).

**physics**

A driver in a car traveling at a speed of 55.3 mi/h sees a deer 108 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime).

**Physics**

A driver in a car traveling at a speed of 56.1 mi/h sees a deer 103 m away on the road. Calculate the minimum constant acceleration that is necessary for the car to stop without hitting the deer (assuming that the deer does not move in the meantime). (in m/s^2)

**physics**

A car is traveling along a straight road at a velocity of +35.1 m/s when its engine cuts out. For the next 1.95 seconds, the car slows down, and its average acceleration is . For the next 6.52 seconds, the car slows down further, and its average acceleration is . The velocity ...

**Physics**

As a train approaches the city it sees a stalled car on the tracks. The train slams on its brakes going from 25 m/s to rest in 30 s. How far away was the stalled car when the train conductor slammed on the brakes?

**Physics (please help)**

Two cars are drag racing, starting from rest at t = 0, on a straight and level road. Team Alpha's car produces acceleration ax = alpha t^(-1/2) ; while Team Beta's car produces acceleration ax = Beta ; for all t > 0, where alpha and beta are positive constants with suitable...

**physics**

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 29.4 . The acceleration period lasts for time 9.00 until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height reached by the rocket. ...

**physics**

A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 49.0 . The acceleration period lasts for time 6.00 until the fuel is exhausted. After that, the rocket is in free fall. Find the maximum height reached by the rocket. ...

**physics**

An airplane is flying above the Earth's surface at a height of 10.9 km. The centripetal acceleration of the plane is 16.7 m/s2. What is the angular velocity of the plane moving in uniform circular motion? Take the radius of the earth to be 6400 km. Please help, I've tried ...

**physics**

a train starts from rest ad at the end of 90° seconds has a speed of 10km/h. What is the acceleration?

**physics**

2.The distance travelled by a body moving with uniform acceleration in the nth second is given by Sn=3.8+0.4n,find the velocity of the body

**physics**

a stone of mass 50g is being rotated in circle of radius 50cm with a uniform speed of 2m/s.what is the acceleration of the stone?

**physics**

The velocity of a sprinter is 9m / s. After 4 seconds, his velocity become zero. If acceleration is taken to be uniform. Find its value

**physics**

Consult Interactive Solution 2.22 before beginning this problem. A car is traveling along a straight road at a velocity of +38.8 m/s when its engine cuts out. For the next 2.01 seconds, the car slows down, and its average acceleration is . For the next 6.36 seconds, the car ...

**physics**

Consider the directions of the velocity and the acceleration vectors of an object in uniform circular motion. A. Both vectors point away from the center. B. The velocity points along the tangent, and the acceleration is zero, since the speed is constant. C. The velocity points...

**Physics**

A car traveling 56 km/h is 21.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.17 s later. a)What was the car's constant deceleration before impact? b)How fast was the car traveling at impact?

**physics**

A car is traveling along a straight road at a velocity of +32.7 m/s when its engine cuts out. For the next 1.04 seconds, the car slows down, and its average acceleration is . For the next 5.23 seconds, the car slows down further, and its average acceleration is . The velocity ...

**physics**

A car is traveling along a straight road at a velocity of +27.7 m/s when its engine cuts out. For the next 1.94 seconds, the car slows down, and its average acceleration is . For the next 4.92 seconds, the car slows down further, and its average acceleration is . The velocity ...

**Phsics**

A car is traveling along a straight road at a velocity of +38.8 m/s when its engine cuts out. For the next 2.01 seconds, the car slows down, and its average acceleration is . For the next 6.36 seconds, the car slows down further, and its average acceleration is . The velocity ...

**physics**

A car speed up from 18m/s to 34 m/s in 2 seconds A) find the cars acceleration must write down all given information and show the work B) What does this acceleration tell us about the motion of the car?

**Physics**

At an accident scene on a level road, investigators measure a car's skid mark to be 68 m long. It was a rainy day and the coefficient of friction was estimated to be 0.40. Using the work-energy theorem determine the speed of the car when the driver slammed on (and locked) the ...

**physics(help!!!!!!!)**

A 1200kg car going 25m/s is brought to a stop using its brakes. Assuming that a total of approximately 20kg of iron in the brakes and wheels absorbs the heat produced by friction. What was the car’s original kinetic energy and after the car has stopped, what is the change in...

**Physics**

A block slides down a frictionless plane having an inclination of 14.3°. If the block starts from rest at the top and the length of this incline is 1.77 m, find the acceleration of the block. b)What is the block's speed when it reaches the bottom of the incline? i found the ...

**physics**

An ore car of mass 40000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 16 m lower vertically, is a horizontally situated spring with constant 2.7 × 105 N/m. The acceleration of gravity is 9.8 m/s2 . Ignore friction. How much is the ...

**physics**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +17 m/s^2. A parachute then opens, slowing the car down with an acceleration of -6.10 m/s^2. How fast us the racer moving 3.50*10^2 m after the parachute opens?

**physics**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +18.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.30 m/s^2. How fast is the racer moving 2.70 x 10^2 m after the parachute opens?

**physics**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.40 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens?

**Physics**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +24.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.10 m/s2. How fast is the racer moving 2.55 102 m after the parachute opens?

**physics**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +20.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.20 m/s2. How fast is the racer moving 3.75 102 m after the parachute opens?

**AP physics**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +23.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.10 m/s2. How fast is the racer moving 2.50 102 m after the parachute opens?

**phsics**

A drag racer, starting from rest, speeds up for 402 m with an acceleration of +16.0 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.60 m/s2. How fast is the racer moving 2.90 102 m after the parachute opens?

**physics**

A drag racer, starting from rest, speeds up for 384 m with an acceleration of +19.3 m/s2. A parachute then opens, slowing the car down with an acceleration of -6.33 m/s2. How fast is the racer moving 302 m after the parachute opens?

**Physics**

A drag racer, starting from rest, speeds up for 393 m with an acceleration of +16.3 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.51 m/s2. How fast is the racer moving 3.31E+2 m after the parachute opens?

**Physics**

A drag racer, starting from rest, speeds up for 393 m with an acceleration of +16.3 m/s2. A parachute then opens, slowing the car down with an acceleration of -5.51 m/s2. How fast is the racer moving 3.31E+2 m after the parachute opens?

**Physics**

A speeder traveling at a constant speed of 102 km/h races past a billboard. A patrol car pursues from rest with constant acceleration of (9 km/h)/s until it reaches its maximum speed of 146 km/h, which it maintains until it catches up with the speeder. How long does it take ...

**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