Table of Contents

Can an object in equilibrium be moving at constant velocity?

A moving object is in equilibrium if it moves with a constant velocity; then its acceleration is zero. A zero acceleration is the fundamental characteristic of an object in equilibrium.

Can an object be in equilibrium if it is in motion?

Yes, a body can be in equilibrium if it is in motion. We call this type of equilibrium as a dynamic equilibrium. We know that a body is said to be in equilibrium if the net force acting on it is zero. By the second law of motion, we know that the acceleration in such bodies is zero.

What does it mean for an object to be in equilibrium?

In general, an object can be acted on by several forces at the same time. If the size and direction of the forces acting on an object are exactly balanced, then there is no net force acting on the object and the object is said to be in equilibrium.

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When you apply a constant force to an object does the object move at a constant velocity or does its velocity increase?

Newton’s second law says that when a constant force acts on a massive body, it causes it to accelerate, i.e., to change its velocity, at a constant rate. In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force.

How is Newton’s third law applicable to gun and bullet?

Newton’s third law states that in a system, there are equal and opposing forces. Hence, when a constituent of a system leaves it, it leaves its so called trace marks behind a.k.a momentum in opposite direction. Hence, Gun goes back in proportion to its mass and bullet moves forward due to its exploding gunpowder.

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Why does a gun recoil on firing a bullet?

When a bullet is fired from a gun, the gun exerts a force on the bullet in the forward direction. This is force is called as the action force. The bullet also exerts an equal and opposite force on the gun in the backward direction. Therefore a gun recoils when a bullet is fired from it.

What would happen if you shoot a bullet on a train?

If you shoot the bullet off the back of the train, the bullet will still be moving away from you and the gun at 1,000 mph, but now the speed of the train will subtract from the speed of the bullet. Relative to the ground, the bullet will not be moving at all, and it will drop straight to the ground.