Name the type of forces involved in the following :
(a) A ball launched in air hitting the ground
(b) A bicycle coming to rest when pedalling is stopped.
(c) A horse pulling a cart
(d) A plastic comb rubbed in dry hair picking up tiny pieces of paper
(e) A sticker attached on a refrigerator without glue
The types of forces in the given cases are:-
(a) Force of Gravity
(b) Frictional force
(c) Muscular force
(d) Electrostatic force
(e) Magnetic force.
Define 'force'.
Match the following option:
| A. Contact force | (i) Non-contact force |
| B. Force | (ii) Force on unit area |
| C. Gravity | (iii) Push or Pull |
| D. Gravity | (iv) Muscular force |
| E. Pressure | (v) Strength of force |
What is the magnitude of the resultant force when two forces act in same direction?
What is the requirement for a force to come into play?
