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प्रश्न
Multiple Choice Question. Select the correct option.
Action-reaction forces
विकल्प
act on the same body
act on different bodies
act along different lines
act in same direction
उत्तर
act on different bodies
APPEARS IN
संबंधित प्रश्न
Make a match
| A group | B group |
| 1. Fluid | a. Higher pressure |
| 2. Blunt knife | b. Atmospheric pressure |
| 3. sharp needle | c. Specific gravity |
| 4. Relative density | d. Lower pressure |
| 5. Hecto pascal | e. Same pressure in all directions |
Explain giving two examples of following :
Contact forces
State one factor on which the magnitude of a non-contact force depends. How does it depend on the factor stated by you?
Give one example in each of the following cases where a force:
(i) Stops a moving body.
(ii) Moves a stationary body.
(iii) Changes the size of a body.
(iv) Changes the shape of a body.
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?
A force is needed to :
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.
Explain the following:
Why do we jerk wet clothes before spreading them on a line?
Figure shows a car sticking to an electromagnet. Name the forces acting on the car. Which one of them is larger?
