If an object is moving with constant momentum kg * m/s, what is the rate of chan

Question

If an object is moving with constant momentum kg * m/s, what is the rate of change of momentum dp vector/dt dp vector/dt = (kg * m/s)/s What is the net force acting on the object F vector_net = N The velocity of a ball changes from m/s to m/s in 0.04 s, due to the gravitational attraction of the Earth and to air resistance. The mass of the ball is 110 grams, What is the acceleration of the ball a vector = (m/s)/s What is the rate of change of momentum of the ball dp vector/dt = (kg * m/s)/s What is the net force acting on the ball F vector_net= N

Explanation / Answer

6 ) P is constant

dp /dt = 0 N

we know that

Fnet =dp/dt N

Fnet = 0 N

7)

a)

acceleration = dv/dt

a = (-4 , -7 ,0 ) m/sec^2

a = 8.06225 m/sec^2 ( magnitude)

b)

dp/dt = m (dv/dt )

dp/dt = (-0.44 , -0.77,0) kgm/sec^2

dp/dt = 0.8868 kgm/sec^2 magnitude

c)

Fnet = dp/dt

Fnet = (-0.44 , -0.77,0) kgm/sec^2

Fnet = 0.8868 kgm/sec^2

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