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Kinematics Questions and Answers (Q&A)

L. Brett, Sales Manager
Answered: Nov 27, 2018
Correct answer is C - the 2 objects are traveling at the same speed.
Neglecting air resistance, an object thrown up has the same speed as the second object thrown down from the top of a...Read More

2 Answers

994 views
Jvoriana
Answered: Dec 10, 2016
Avg velocity =Δx/Δt
= (50-30)m/(30-10)s
= 20m/20s
∴ Ave Velocity = 1m/s (None in the choices given.)

4 Answers

475 views
John Adney
Answered: Apr 11, 2017
Units for acceleration should be expressed in m/s/s, not m/s.

5 Answers

269 views
John Adney
Answered: Jun 19, 2017
Shouldn't the answer be 30 m/s because that is the average of the final and starting velocities

3 Answers

253 views
John Adney
Answered: Aug 26, 2017

How come the displacement is 14.14? I mean i do not understand that! Can anyone tell me?

3 Answers

252 views
Adityatech
Answered: Jul 04, 2020
The velocity increases up to a time , and then becomes constant

For time t < t0 velocity of particle = constant positive value for time t > t0 velocity = slope...Read More

1 Answer

251 views
John Adney
Answered: Jul 16, 2017

On 12s particle is at rest as y component of graph i.e. distance / displacement is constant . Hence , at this instant velocity remains zero.

3 Answers

243 views
Drtaylor
Answered: Jul 04, 2020
It will have the same acceleration, both up the hill and down the hill.

1 Answer

240 views
John Smith
Answered: Jul 04, 2020
1.25 m/s²

S = ut + &189 a t². With s= 40m, t = 4s and u = 7.5m/s, we get 40 = 7.54 + &189 a 44 ==> a =1.2m/s²

1 Answer

235 views
Physicspaathshala
Answered: Jul 04, 2020
Less than the speed it had when thrown upwards.

1 Answer

233 views
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