Question

A car advance from rest 30m/s in 10 second.Calculate its acceleration ​

Answer 1

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Hope my attachment will be helpful ☺️

Answer 2

Answer:

OK, it’s trivially easy to work it out just from glancing at the figures. But as this is obviously your homework, you’d better do it the “proper” way.

Check your notes and/or your text book. You should find three common equations there that relate acceleration, velocity and time to each other. One of those should be;

v = u + at

So you know that v (the final veocity) is zero, u (the initial velocity) is 30 m/s and t (time taken) is 10 seconds. So just plug the values in and solve for a. So that gives;

0 = 30 + 10 a

Rearrange that to get;

10 a = -30

You can do the rest… (maybe divide both sides by 10?)

And don’t forget to quote the units in your answer. You’ll lose marks (or you ought to!) if you omit them.

Explanation: