Question

A body starts from rest and moves with a uniform acceleration of 3 ms-2 in a straight line.
(a) What is its velocity after 4 seconds? (b) When will it be 100 m from its starting point

Answer 1

Answer:

1) 12 m/s

2) 6 sec

Explanation:

1)u=0 m/s

a=3 m/s^2

t=4 sec

first equation

v=u+at

put the values and solve

2)second equation of motion

s=ut+1/2at^2

put the values and solve