English

Name the Physical Quantity Whose Unit is Kg.M/S. - Science

Advertisements
Advertisements

Question

Name the physical quantity whose unit is kg.m/s.

One Line Answer
Advertisements

Solution

Momentum is the physical quantity whose unit is kg.m/s.

shaalaa.com
  Is there an error in this question or solution?
Chapter 2: Force and Laws of Motion - Very Short Answers 1 [Page 55]

APPEARS IN

Lakhmir Singh Physics (Science) [English] Class 9 ICSE
Chapter 2 Force and Laws of Motion
Very Short Answers 1 | Q 6 | Page 55

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

A plastic ball and a clay ball of equal masses, travelling in the same direction with equal speeds, strike against a vertical wall. From which ball does the wall receive a greater amount of momentum ?


Which physical quantity corresponds to the rate of change of momentum ?


Which physical principle is involved in the working of a jet aeroplane ?


A body of mass 2 kg is at rest. What should be the magnitude of force which will make the body move with a speed of 30 m/s at the end of 1 s ?


The velocity of a body of mass 10 kg increases from 4 m/s to 8 m/s when a force acts on it for 2 s.
(a) What is the momentum before the force acts ?
(b) What is the momentum after the force acts ?
(c) What is the gain in momentum per second ?
(d) What is the value of the force ?


Name the law involved in the following situation :

the sum of products of masses and velocities of two moving bodies before and after their collision remains the same.


Why are car seat-belts designed to stretch some what in a collision ?


The troops (soldiers) equipped to be dropped by parachutes from an aircraft are called paratroopers. Why do paratroopers roll on landing ?


A man wearing a bullet-proof vest stands still on roller skates. The total mass is 80 kg. A bullet of mass 20 grams is fired at 400 m/s. It is stopped by the vest and falls to the ground. What is then the velocity of the man?


Two billiard balls A and B, each of mass 50 g and moving in opposite directions with speed of 5 ms–1 each, collide and rebound with the same speed. If the collision lasts for 10–3 s, which of the following statements are true?

  1. The impulse imparted to each ball is 0.25 kg ms–1 and the force on each ball is 250 N.
  2. The impulse imparted to each ball is 0.25 kg ms–1 and the force exerted on each ball is 25 × 10–5 N.
  3. The impulse imparted to each ball is 0.5 Ns.
  4. The impulse and the force on each ball are equal in magnitude and opposite in direction.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×