Question

A body of mass m moving with an initial velocity of 10m/s accelerate for 20s. final velocity of the body is 25m/s.given that mass of body is 2kg.find force and momentum.​

Answer 1

Answer:

force is 0.5N

and momentum is 50kgms-1..

Mark me if it helps

Answer 2

Explanation:

Given , Mass of object, m=10 kg

Velocity of object, v=20ms

−1

Initial Kinetic energy, K

1

=

2

1

×10×20

2

=2000 J

Now, Final mass, m

2

=20 kg

Final Velocity, v

2

=10m/s

Final Kinetic energy, K

2

=

2

1

×20×10

2

=1000 J

Required Ratio =

K

2

K

1

• thank u

=

1000

2000

=2:1