as work done is dot product of force and displacement so cos(90)=0;therfore work done is zero
Static friction. The frictional force is greater then the force applied, meaning the object can't move.
The Centripetal force keeps a object moving in a circle and its force and acceleration are directed toward the center of the circle
because the force pulls up the moving object and it stops When a force is applied to a body, the body gets acceleration or retardation. so the moving object may move faster or may stop. when there is no force, the moving object will move with a constant velocity.
to keep an object moving the way it is already moving .
what starts to move an object is force because it's pushing on the object and what stop's the obect from moveing is force too because if the force is going the oppisit way its going to stop the object.
It depends on the magnitude of the force and the mass of the object
It depends on the magnitude of the force and the mass of the object
-- The equal and opposite forces on it are the vertical forces ... the weight of the block downward and the normal, constraint force of the surface upward. Since the vertical forces are equal and opposite, the net vertical force on the object is zero, and it has no vertical acceleration. -- Nobody ever said that the block needs force to keep moving. In fact, it doesn't. Once it's moving horizontally, no force is needed to keep it moving horizontally. If it weren't for that pesky friction where it touches the surface, it would keep moving forever with no force on it.
A couple of perfect examples are: -- the driver sitting in a car cruising along a level highway -- the dog sitting in a little red wagon being pulled on level ground by a little girl. In each case, the passenger's weight is the gravitational force, acting vertically, while the vehicle is constrained to move horizontally. The gravitational force does no work in either situation, because the (vertical) distance through which it acts is zero.
Yes, a body can move horizontally with acceleration in the vertical direction if it is subject to a force that is acting at an angle. This can cause the body to experience motion in both the horizontal and vertical directions simultaneously, resulting in acceleration in the vertical direction while still moving horizontally.
It depends on the magnitude of the force and the mass of the object
Moving an object at an angle can increase the work done on the object compared to moving it in a straight line. This is because work is equal to the force applied in the direction of motion multiplied by the distance the object moves. When moving at an angle, the force required to displace the object is split between moving it horizontally and vertically, increasing the overall work done.
The force of gravity is the same, whether the object doesn't move at all, whether it moves horizontally, vertically, diagonally, or whatever. The force is about 9.8 newton/kilogram.Therefore, if no other forces act on the object, it will accelerate downward at a rate of 9.8 meters/second squared - again, no matter how the object is moving at any given time. Under gravity (and assuming no other forces are significant - such as air resistance), an object that initially moves horizontally will have the tendency to move in a parabola.
There is no friction in N unless there is a force normal to the pole. If it is a vertical pole and the object is only moving up and down, there is no friction between the object and the pole. Gravity and the force applied to the object parallel to the pole are the only forces unless there is another factor such as wind or magnetic attraction.
The force of friction acts against an object traveling horizontally, opposing its motion and causing it to slow down.
If the force is aligned with the horizontal, then its vertical component is zero.
Yes. The force of gravity is the same, 9.8m/s2, whether an object is at rest, in vertical motion, or horizontal motion, because the force of gravity is due to the mass of the earth and not to the motion of any object. The force of gravity does decrease slightly with altitude, as distance from the center of the earth increases.