What is the impulse that a car with a mass of 6kg experiences when its velocity changes from 23m/s to 6m/s?

What is the impulse that the wall creates when it applies a force of 29N over a period of 7s in a collision?

A ball of clay with a mass of. 1 kg hits the floor and comes to a stop. Just before it hits the floor the velocity was - 5.69m/s. If the collision took. 64 s, how much force is the floor exert on the ball of clay?

Question

Scarlet Levy

Physics

30 May, 21:48

What is the impulse that a car with a mass of 6kg experiences when its velocity changes from 23m/s to 6m/s?

What is the impulse that the wall creates when it applies a force of 29N over a period of 7s in a collision?

A ball of clay with a mass of. 1 kg hits the floor and comes to a stop. Just before it hits the floor the velocity was - 5.69m/s. If the collision took. 64 s, how much force is the floor exert on the ball of clay?

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Answers (1)

Know the Answer?

Rocko · Answer 1

A.

Impulse is calculated through the equation,

I = mΔv

where I is impulse, m is mass and Δv is change is velocity. Substituting the known values,

I = (6 kg) (23 m/s - 6 m/s)

I = 102 kg m/s

Answer: 102 kg m/s

B.

Impulse in this item is calculated by multiplying the force by the time.

I = Force / time = (29 kg m/s²) (7 s) = 203 kg m/s

Answer: 203 kg m/s

C.

To answer this item, we have to multiply the mass and the velocity to get the impulse and divide the answer by the time to get the force.

F = m (v) / t

Substituting,

F = (0.1 kg) (-5.69 m/s) / 0.64 s

F = - 0.89 N

Answer: - 0.89 N