Table of Contents
Can an object stop instantaneously?
To move an object you must apply a force where F=m→a and →a=d→v/dt. To move it instantaneously implies that dt –> 0 and the force would go to infinity. Hence instantaneous acceleration or deceleration is impossible.
How a force can stop a moving object?
If an object is moving and there is an applied force in the opposite direction of the motion, the object will decelerate or slow down. If you throw a ball up at a given velocity, it will slow down as it travels upward due to the force of gravity. A decelerating force can cause a moving object to stop.
How can we reduce the speed of a moving object?
Answer: If force is applied in the direction opposite to the direction of the motion , it results in a decrease in the speed of the object.
Do things ever stop moving?
A body though never stops moving with relation to another as there are infinitely many other objects that move that will see the stationary object moving at a relative velocity with itself.
Can gravity stop a moving object?
Because, gravity not only holds us in her grip; it also forces all other objects to the ground and inhibits them from moving chaotically, without regularity, freely left to chance. It is perhaps the most important force imposing order upon our existence.
Is throwing a push or pull?
Fun Facts. A force is a push or a pull. When you throw a ball, the force of your throw moves it forwards, the force of gravity pulls it down and the force of air resistance slows it down.
Is force needed to stop an object?
It stated that if an object is moving, some sort of force is required to keep it moving. Unless that moving thing is being pushed or pulled, it will simply slow down or stop. In the absence of any forces, no force is required to keep an object moving.
Can you be perfectly still in space?
There is no ‘still’ that is not relative to some other object. So yes, you can be still with respect to one object, but you’ll be moving with respect to every other object.
Can an object stop dead in an instant?
In truth, objects cannot possibly stop dead in an instant. The object itself – and the object it hits MUST deform very, very slightly. This stretches the time over which the object slows down to something very short – but not zero. This reduces the acceleration to something a little more sane – and the forces involved become quite reasonable.
What makes a moving object to stop?
What makes a moving object stop? 1 A moving object will slow and stop due to any force that acts in a direction opposite to the direction of motion. 2 Though it does not sound like the same answer, one can say that any process that removes the kinetic energy of a moving… More
How do you drive onto a moving object?
To drive onto a moving object (as, for example, up a ramp onto a moving trailer), you must be going faster than the object to move forward up the ramp, but when you come to a stop relative to the object, you will be moving with the object, so must be moving at the same speed.
Why is the acceleration of an object that stops instantaneously infinite?
Physicists would say that as the time over which the speed reduces get smaller and smaller, the acceleration gets larger and larger and “tends toward infinity”. So the acceleration of an object that stops instantaneously would be infinite.