The speed of the car is decreased uniformly from 30 m/s to 10 m/s in 4.0 seconds. What is its acceleration?

Q: The speed of a car increases from 20 m/s to 80 m/s during 3 seconds . The acceleration of the car…

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Q: A car starts from rest and accelerates uniformly to reach a speed of 21 m/s in 7.0 s. What was the…

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Q: A car moves with a speed of 25 m/s. What distance will it travel in a time of 1 hour:

A: distance = speed x time

Q: If the speed at x = 1, v(x = 1) = 3 m/s then the speed at x 0, v(x=0) is:

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Q: A driver in a car slows down when he sees a deer ahead. He slows down at a rate of -5.6m/s^2 for 4…

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Q: What is the car’s acceleration within the second hour of the journey?

A: Acceleration is given as rate of change of velocity with time.

Q: A car traveling at 3.0 m/s has a constant acceleration of 4.0 m/s in the same direction as the…

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Q: A truck covers 40.0 m in 8.95 s while smoothly slowing down to final speed of 1.60 m/s.

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Q: A car is moving on a straight road at &8 m/s it is acceleration at 6 m/ s what will be its velocity…

A: According to the equation of motion, final velocity of the car is, v = u + at  Where, v = final…

Q: An ant starts at 0.5 cm/s and speeds up to 1.5 cm/s in 0.5 seconds.  Calculate its acceleration

A: Given data The initial velocity of the ant is given as u = 0.5 cm/s. Th final velocity of the ant is…

Q: A car starts from rest and goes down a slope with a constant acceleration of 5 m/s2. After 10 s the…

A: In the given problem the acceleration is constant so the Newton's law of motion can be used to…

Q: A man throws a ball vertically upward from the window of a building with a speed of 15 m/s.

A: The expression from kinematics,

Q: What is the impact speed when a car moving at 100km/hr bumps into rear of another car travelling in…

A: Impact speed is the speed just before collision, Since both the cars are moving ,the car moving with…

Q: How fast is a dropped object moving after it falls for 4 s?

A: Given data:  Initial velocity (u) = 0 m/s Time (t) = 4 s  Required: Final velocity (v)

Q: If the speed at x = 1, v(r = 1) = 3 m/s then the speed at x = 0, v(x=0) is:

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Q: An airplane travels 40 miles in 10 minutes, then travels 20 miles in 80 minutes. Is the pilot…

A: Given data :- distance d1 = 40 miles time t1 = 10 minutes distance d2 = 20 miles time t2 = 80…

Q: A soccer ball is kicked with the initial speed of 10.7 m/s After 0.730 s it is at its highest point.

A: Initial speed of the ball u=10.7 m/s Time taken by the ball to reach the maximum height t =0.73 s If…

Q: A jogger runs 10 km in 45 minutes, rests for 10 minutes, and then runs another 8 km in 1 hour. The…

A: Given Data :               Distance traveled by jogger in first 45 minutes (d1) = 10 km = 10×103 m…

Q: What is the acceleration of a car that increases its velocity from 0 to 100km/h in 10s?

A: Given:Initial velocity of the car = 0 km/hFinal velocity of the car = 100 km/hTime taken = 10 s

Q: A 747 airliner reaches its takeoff speed of 152 mi/h in 35.5 s.

A: The expression for find average acceleration is aavg=v-ut

Q: A truck increases its speed uniformly from 15 m/s to 25 m/s over a distance of 300 m. The…

A: Using 3rd kinematic equation: V^2 = U^2 + 2*a*d U = Initial speed of truck = 15 m/s V = final speed…

Q: A sprinter accelerates at the beginning of a 100-meter race and then tries to maintain a maximum…

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Q: A 1000-kg automobile enters a freeway on-ramp at 20 m/s and accelerates uniformly up to 40 m/s in a…

A: First of all we have to calculate the acceleration of the automobile. Acceleration of an object is…

Q: What is the impact speed when a car moving at 100km/h bumps into rear of another car travelling in…

A: the imapct speed is

Q: a car slows down from  45 m/s to 13m/s in 4 s. What is the acceleration.

A: Given that a car slows down from  45 m/s to 13m/s in 4 sec i.e.initial velocity V1 =45 m/secfinal…

Q: From a speed of 46 kph, a train decelerates at the rate of 2m/min2, along the path. How far in…

A: hereu=46 kmpa=-2 mmin2

Q: car goes from 5 m/s to 22 m/s in a distance if 320. what is the acceleration

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Q: A car falls from a height of 25 m. How fast does it go to the bottom??

A: The kinematic equation involving the final speed (v), initial speed (u), acceleration (a) and the…

Q: A ball drops from a building and strikes the ground in 1.8 s. The speed (in m/s) with which the ball…

A: Using equation of kinematics, v=u+at=u-gt                     Since, a=-g

Q: If a car traveling at 38 m/s decelerates at 6.5 m/s2, the stopping distance of the car is    ?  in…

A: The stopping distance can be given by d=v22a

Q: A car travels at the constant speed of 31 mph for 20 mi, at a speed of 40 mph for the next 20 mi,…

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Q: A red truck is moving at a constant speed and covered a distance of 95m in 7.0 seconds. It stopped…

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Q: An airplane reaches a velocity of 80 m/s when it takes off. If the runway is 1 km in length, what…

A: Acceleration can be found by using equation of motion .

Q: a dog is running at 8.25m/s chasing a cat. the dog gives up and slows down to a stop in 3.1 seconds…

A: Given: A dog is running at u = 8.25 m/s finally the dog stop in t = 3.1 seconds final speed of the…

Q: A truck accelerates from the speed of 5.5 M/S to 8.0 M/S in 7.5 seconds. What is the average rate of…

A: The average acceleration can be given by aavg=∆v∆t

Q: The average speed of a car is 35 km h-. How far can it travel.in 45 minutes?

A: Given average speed V =35kmh And time t= 45 minutes We have to find the distance travelled by the…

Q: You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your Average speed over the 12 km…

A: Given data: Distance covered in first half is, s1=6.0 km. Speed during the first half is, v1=50…

Q: if a car starts from rest and reaches a speed of 20 m/s in 5s, what distance was covered?

A: To find out the distance , we will use equation of motion :  s= ut + 1/2 at^2  where , s= distance…

Q: A bicycle accelerates from rest at a constant rate of 2.12 [m/s*] for 15.0 [s]. It then ran at a…

A: Given data:  Initial velocity (v0) = 0 m/s Acceleration (a) = 2.12 m/s2  For time (t) = 15.0 s Then…

Q: An object starts from rest and accelerates uniformly. If it moves 3 m during the first second, then,…

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Q: A car is moving on a straight road at 8 m/s it is acceleration at 6 m/s what will be its velocity…

A: Given data :              Initial velocity = U               Acceleration = a                Time =…

Q: The car slows down at constant acceleration of 4 m/s^2 from the velocity of 40 m/s. Detemine the…

A: Given  Retardation (a) = 4 m/s2  Initial velocity (vi) = 40 m/s   time (t) = 10 s    Velocity of car…

Q: Speed of a train is 20 meters per second. It can cross a pole in 10 seconds. What is the length of…

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Q: A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope,…

A: As per guidelines, the first question (#1) has been answered. Please post the remaining questions…

Q: A child is sitting on the outer edge of a merry- go- round that is 18m  in diameter. If the merry-…

A: Given information: The diameter of the merry-go-round (d) = 18 m The angular velocity of the merry…

Q: You drive 6.0 km at 50 km/h and then another 6.0 k at 90 km/h. Your average speed over the 12km…

A: The speed is the ratio of distance over time,  For the first 6.0 km the speed is 50 km/h, so the…

Q: A stone takes 6.00 s to hit the beach after falling from the top of a cliff. Ignoring air friction,…

A: Given here,time taken, t=6 s from the second equation of motion,             S = ut + 12at2

Q: A roller coaster car rapidly picks up speed as it rolls down a slope. As it starts down the slope,…

A: Initial speed of roller coaster car = 4 m/sfinal speed of car = 22 m/sTime taken = 3 seconds

Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –