Advertisements
Advertisements
प्रश्न
Name the physical quantity whose unit is ‘newton’.
उत्तर
Force is the physical quantity whose unit is ‘Newton’.
APPEARS IN
संबंधित प्रश्न
A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because ______.
Find the acceleration produced by a force of 5 N acting on a mass of 10 kg.
When a train starts, the head of a standing passenger seems to be pushed backward. Analyse the situation from the ground frame. Does it really go backward? Coming back to the train frame, how do you explain the backward movement of the head on the basis of Newton's laws?
'When a hanging carpet is beaten with a stick, the dust particles start coming out of it'. This phenomenon can be best explained by making use of :
State Newton's first law of motion.
Explain the following :
After alighting from a moving bus , one has to run for some distance in the direction of bus in order to avoid falling .
What do you mean by inertia of motion?
Differentiate between gravitational mass and inertial mass.
A balloon has mass of 10 g in air. The air escapes from the balloon at a uniform rate with velocity 4.5 cm/s. If the balloon shrinks in 5 s completely. Then, the average force acting on that balloon will be (in dyne).
Match the following.
Column I | Column II |
a. Newton’s I law | propulsion of a rocket |
b. Newton’s II law | Stable equilibrium of the body |
c. Newton’s III law | Law of force |
d. Law of conservation of Linear momentum | Flying nature of bird |