Question

change in momentum of body 50 kg m/s in time 4 second. what is force acting on it​

Answer 1

Answer:

The force applied on the body is equal to the rate of change of momentum. Momentum is defined as the product of mass and velocity of the body.

P = m*v

According to the equation of motion for a uniform acceleration;

v = u + a*t

where, u - initial velocity, v - final velocity, a - acceleration of the body, t - time.

u = 10 m/s, a = 5 m/s2, t = 4 sec

v = 10 + 5*4 = 30 m/s

Change in momentum = m*(v-u)

Change in momentum = 50*(30–10) = 1000 kg m/s

Explanation:

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Answer 2

Answer:

The force applied on the body is equal to the rate of change of momentum. Momentum is defined as the product of mass and velocity of the body.

P = m*v

According to the equation of motion for a uniform acceleration;

v = u + a*t

where, u - initial velocity, v - final velocity, a - acceleration of the body, t - time.

u = 10 m/s, a = 5 m/s2, t = 4 sec

v = 10 + 5*4 = 30 m/s

Change in momentum = m*(v-u)

Change in momentum = 50*(30–10) = 1000 kg m/s

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