Question

Find the total displacement of a body in 8 second starting from rest with an acceleration of 20cm/s^2

Answer 1

Explanation:

s=0+1/2×20×8×8

s=10×64

s=640cm

s=6.4m

Time= 8s

U=0

a=20 cm^2

Using the second equation of motion

S=ut +1\2at^2

S= 0×8+10×8×8

S=640cm