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skateboard. momentum is mass times velocity thus if 0 velocity=0 momentum

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Q: Which has a greater momentum a heavy truck at rest or a moving skeatboard?
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Why it is hard to stop fast moving and heavy vehicles?

Momentum.


When a wrecking ball hits a wall it is not moving fast How can it have enough momentum to knock down a wall?

Momentum is a function of both mass and speed. The wrecking ball isn't moving very fast, but it is extremely heavy; that is where its momentum comes from.


Which has the greater mass a heavy truck at rest or a rolling skateboard which has greater momentum?

The truck has the most mass, but because it is at rest, the skateboard has the most momentum.


Why is it harder to stop a heavy football player than a lighter football player?

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Which has a greater momentum a heavy truck at rest or a moving automobile?

The momentum of any object depends on its mass and its speed. If a car and a bike are both moving at the same speed, then the car has more momentum because it has more mass than the bike. If the car and the bike are moving at different speeds, then we need to know the speeds of each, in order to make any determination about their respective momenta.


Does an object have to be heavy in order to have momentum?

No. Even a single electron has momentum.


A large heavy truck and a small baby carriage roll down a hill Neglecting friction at the bottom of the hill the baby carriage will have a greater?

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Does an object have to be heavy to have momentum?

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It has more momentum from a higher height. Because momentum is always conserved, and momentum is the product of mass times velocity, more sand particles must move away faster in order to conserve the momentum of a heavy ball moving fast. The ball is moving faster from a higher height because the acceleration due to gravity (-9.81 m/s^2) increases the velocity of a falling object after each second its been falling.


Must you lift weights slowly?

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