Advertisements
Advertisements
प्रश्न
Two persons are applying forces on two opposite sides of a moving cart. The cart still moves with the same speed in the same direction. What do you infer about the magnitudes and direction of the forces applied?
उत्तर
The magnitude of forces will be equal and it acts in opposite direction, so that they are cancelling each other. We can understand this by using the following diagram :
APPEARS IN
संबंधित प्रश्न
Give one example in each case where :
The force is of contact, and
Force is at a distance
A wooden block is placed on a table top. Name the forces acting on the block and draw a neat and labelled diagram to show the point of application and direction of these forces.
State the effects of a force applied on
- A non-rigid, and
- A rigid body.
How does the effect of the force differ in the two cases?
A ball moving on a table top eventually stops. Explain the reason .
A ball is moving on a perfectly smooth horizontal surface. If no force is applied on it, then will its speed decrease, increase or remain unchanged?
'More the mass, the more difficult it is to move the body from rest'. Explain this statement by giving an example.
Two equal and opposite forces act on a stationary body. Will the body move? Give a reason to your answer.
A golfer hits a ball at rest, such that the contact between the ball and golf stick is for 0.1 s. If the golf ball covers a linear distance of 400 m in 2 s, find the magnitude of force applied. Mass of golf ball is 50 g.
Rocket works on the principle of conservation of
A gas filled balloon moves up. Is the upward force acting on it larger or smaller than the force of gravity?