Advertisements
Advertisements
Question
Give two examples to verify that a force changes the shape of a body.
Advertisements
Solution
Force can change the static condition of a body.
- If you squeeze a sponge, its shape changes.
- If you pull a rubber band, it becomes longer.
APPEARS IN
RELATED QUESTIONS
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?
How is force related to the momentum of a body?
Explain what is understood by the following statement 1 kilogram-force (kgf) - 9.8 newton
Complete the following:
Force = mass x ............
Two balls of masses in ratio 1 : 2 are dropped from the same height find
a) the ratio between their velocities when they strike the ground and
b) the ration if the forces acting on them during motion.
How much acceleration will be produced in a body of mass 10 kg acted upon by a force of 2 kgf?(g = 9.8 ms-2)
Two bodies have masses in the ratio 3 : 4 when a force is applied on the first body. it moves with an acceleration of 6 ms-2 . How much acceleration will the same force produce in the other body?
A uniform car of mass 500g travels with a uniform velocity of 25 ms-1 for 5 s. The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s calculate
1) the retardation
2) the distance which the car travels after the brakes are applied
3) The force exerted by the brakes.
Why is it easier to open a door by applying the force at the free end of it?
The trees are greenish. They are greenish at the tip too. How does the water rise upward in a tree or plant against the force of gravity?
