Question

The mass of the object is 10 kg and initial velocity is 5 metre per second and final velocity is 10 metre per second and time taken is 10 second. Find the initial and final momentum of the object and also magnitude of force exerted on the object.





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Answer 1

Answer:

intial momentum=10*5=50kgm/s

final momentum=10*10=100kgm/s

f=change in momentum/t

=50/10=5newton

Answer 2

Answer :-

Given :-

• Mass of object = 10 kg
• Initial velocity = 5 m/s
• Final velocity = 10 m/s
• Time taken = 10 seconds

To Find :-

• Initial momentum
• Final momentum
• Magnitude of force of object

Solution :-

We know that,

Momentum = Mass × Velocity

Calculating Initial momentum -

Initial momentum = Mass × Initial velocity

= 10 × 5

= 50

Initial momentum = 50 kgm/s

Calculating Final momentum -

Initial momentum = Mass × Final velocity

= 10 × 5

= 100

Initial momentum = 100 kgm/s

Calculating Force Exerted on object -

We know that,

Force = Final momentum - Initial momentum / t

Substituting the values -

Force = 100 - 50 / 10

= 50 / 10

= 5

Force exerted on the object = 5 N