Question

a truck accelerates uniformly from 15ms-1 to 20m-1 in 5 s. what is the acceleration of the truck
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Answer 1

Answer:

If we take v=u+at and our given values are:

v=final velocity 20m/s

u=initial velocity 15m/s

a=acceleration

t=time 5sec

we plug those into our equation:

20m/s=15m/s+a(5s)

now we just rearrange to solve for acceleration.

(5m/s)/(5s)=a

a=1m/s^2

hope this helps, and any questions please just ask. Thanks!