if a body have initial velocity of 10 metre per second and it attains

1.	if a body have initial velocity of 10 metre per second and it attains a velocity of 20 metre per second in 5 seconds then its acceleration is
Answer» SUPPOSE the ACCELERATION is a then using the SECOND equation of motion, s=ut+21at2 and putting t=2sec and u=10m/s we get 20=10×2+a×2 or a=0 that is UNIFORM motion.

if a body have initial velocity of 10 metre per second and it attains a velocity of 20 metre per second in 5 seconds then its acceleration is

Answer»

SUPPOSE the ACCELERATION is a then using the SECOND equation of motion, s=ut+21at2

and putting t=2sec and u=10m/s

we get 20=10×2+a×2

or a=0 that is UNIFORM motion.