Question

A particle of 10kg is moving in a constant acceleration 2m/s² starting from rest what is its momentum and velocity with time of 1.5 sec​

Answer 1

Answer:

velocity=2.25m/s

momentum=22.5kgm

Explanation:

we know that v=u.t+ 1/2 a(t)^2

then v=0+ 1/2 a(t)^2 [since particle starts from rest.so initial velocity(u)=0]

v=1/2×2×(1.5×1.5)

v=2.25m/s

momentum=mv

=10×2.25

=22.5

Answer 2

Explanation:

mass,m= 10kg

acceleration,a=2m/s^2

time,t=1.5s

initial velocity,u=0m/s^2

final velocity,v=u+at

=0+2*1.5

=3m/s

momentum=mass * velocity

initial momentum=10*0= 0kgm/s

final momentum=10*3=30kgm/s