Question

a scooter moving at a speed of 10 M per second is stopped by applying brakes which produce a uniform acceleration of -0.5 M per second square how much does how much distance will be covered by the scooter before it stop

Answer 1

-20 m is right answer

Answer 2

see, using the formula v^2 = u^2 - 2aS, we can get the answer. That way, it's 0^2 = 10^2 - 2*0.5*S
=>10^2 = 2*0.5*S
=>100 = S
so, S is 100m.
Thanks!