Question

How long will it take for a body accelerating by 2m/s square to gain a velocity of 10m/s starting from rest.

Answer 1

Answer:

acceleration (a)= 2m/s²

initial velocity (u) = 0

final velocity (v)= 10 m/s

distance(s)= we use a formula

v²-u²=2as

=10²-0²=2×2s

2s= 10²/2

=>2s=100/2

=>2s=50

=>s= 50/2

=>s=25ans

Answer 2

Answer:

Apply first equation of motion,

v=u+at

10=0+2*t

10=2t

t=5 seconds.(Ans).