An electric vehicle starts from rest and accelerates at a rate of 2 m/s2 in a straight line until it reaches a speed of 20 m/s.The vehicle then slows at a constant rate of 1 m/s2 until it stops.  How much time elapses from start to stop? & How far does the vehicle travel from start to stop?

Q: Starting from rest at home plate, a baseball player runs to first base (90 ft away). He uniformly…

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Q: Two objects begin at one end of a straight track of length 16 m and race towards the other end. The…

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Q: A motorcycle has a constant acceleration of 5 m/s2. Both the velocity and acceleration of the…

A: Acceleration of the motorcycle, a=5 m/s2 The velocity at the time t=4 s is v=60 m/s

Q: A cyclist is coasting up a hill. At t=0, the cyclist has a velocity of 14.5 m/s. a) If the…

A: Given data:  Initial velocity (u) = 14.5 m/s Final velocity (v) = 0 m/s Acceleration (a) = -2.5 m/s2…

Q: Two cars are driving at the same constant speed on a straight road, with car 1 in front of car 2.…

A: Given:Distance traveled by the car 1 before stopping = 11 m

Q: A speeding car traveling at a constant velocity of 3 × 10'm/s passes a police car initially at rest…

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Q: A record of travel along a straight path is as follows: 1. Start from rest with constant…

A: (a) Displacement during leg 1 Displacement during leg 2 Displacement during leg 3

Q: An electric vehicle starts from rest and accelerates at a rate of 2.1 m/s2 in a straight line until…

A: Given: from t=0 to t1 initial velocity u1=0m/s acceleration a1=2.1 m/s2 final velocity v1=21 m/s…

Q: A light-rail commuter train accelerates at a rate of 1.45 m/s“. How long (in s) does it take to…

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Q: An electric vehicle starts from rest and accelerates at a rate of 1.7 m/s² in a straight line until…

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Q: A steel ball is dropped onto a hard floor from a height of 1.50 m and rebounds to a height of 1.45…

A: According to question we need to find- Calculate its velocity just before it strikes the floor.…

Q: A sprinter runs the length of a running track of length 150 m. To start, she accelerates at 5.0 m/s?…

A: Given data:  Total length of the running track = 150 m Acceleration (a) = 5.0 m/s2 for 2.0 s…

Q: velocity

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Q: An electric vehicle starts from rest and accelerates at a rate of 4 m/s2 in a straight line until it…

A: An electric vehicle starts from rest and accelerates at a rate of 4 m/s2 in a straight line until it…

Q: One-Dimensional Kinematics (College Physics Ch. 2) 1. An extreme athlete wants to jump on an open…

A: let the total time be tdistance travelled by car is Sc=Vc×tSc=4.8×t m

Q: A spaceship starts at rest, and then launches vertically into the air with an upward acceleration of…

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Q: A record of travel along a straight path is as follows: 1. Start from rest with constant…

A: a. the displacement during first leg is S1=v0t1+12at12=0t+122.1 m/s211 s2=127.05 m

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A: We use kinematical equations. S=ut+1/2at2, u=0V=u+at

Q: 2. An elevator in a very tall building travels upwards a total distance of 300 m (about 80-100…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: At the end of a race a runner decelerates from a velocity of 9.20 m/s at a rate of 1.90 m/s2. (a)…

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Q: A dog runs at 21 km/h [N] for 5.0 min, slows to a stop over a period of 8.0 s, sniffs at a tree for…

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Q: An electric vehicle starts from rest and accelerates at a rate of 1.8 m/s2 in a straight line until…

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Q: A motorcycle is stopped at a traffic light. When the light turns green, the motorcycle accelerates…

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Q: A police car chases a speeder who is moving at a speed of 125 km/hr. The maximum speed of a police…

A: The constant speed of a speeder u1= 125 km/hr = 34.7 m/sMaximum speed of the police car vmax = 190…

Q: A car is traveling at a speed of 30 m/s, a typical highway speed, on wet pavement. The driver sees…

A: Initially, speed of the car was, u = 30 m/s. The driver took t1 = 0.75 s to apply the brake Distance…

Q: A record of travel along a straight path is as follows: 1. Start from rest with constant…

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Q: record of travel along a straight path is as follows: 1. Start from rest with constant acceleration…

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Q: boy walks 300m in a straight line in three stages: for the first 100m he starts from rest and…

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Q: A commuter backs her car out of her garage with a constant acceleration of 1.60 m/s². (For each…

A: Given data:  Initial velocity (u) = 0 m/s Acceleration (a) = 1.60 m/s2 Final velocity (v) = 2.00 m/s…

Q: A light rail commuter train accelerates at a rate of 1.35 m/s^2. a) How long does it take to reach a…

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Q: A commuter backs her car out of her garage with a constant acceleration of 1.40 m/s². (a) How long…

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Q: A commuter backs her car out of her garage with a constant acceleration of 1.40 m/s2. (a) How long…

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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 –