हिंदी

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 ?

Advertisements
Advertisements

प्रश्न

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 ?

संक्षेप में उत्तर
Advertisements

उत्तर

The wall will receive equal momentum from both the balls because both balls have equal mass and velocity.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 2: Force and Laws of Motion - Very Short Answers 1 [पृष्ठ ५७]

APPEARS IN

लखमीर सिंग Physics Part 1 [English] Class 9
अध्याय 2 Force and Laws of Motion
Very Short Answers 1 | Q 51 | पृष्ठ ५७

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

An object of mass 1 kg travelling in a straight line with a velocity of 10 ms−1 collides with, and sticks to, a stationary wooden block of mass 5 kg. Then they both move off together in the same straight line. Calculate the total momentum just before the impact and just after the impact. Also, calculate the velocity of the combined object.


Explain how, a karate player can break a pile of tiles with a single blow of his hand.


A man throws a ball weighing 500 g vertically upwards with a speed of 10 m/s.

  1. What will be its initial momentum ?
  2. What would be its momentum at the highest point of its flight ?

Name the principle on which a rocket works.


A gun of mass 3 kg fires a bullet of mass 30 g. The bullet takes 0.003 s to move through the barrel of the gun and acquires a velocity of 100 m/s. Calculate:

  1. the velocity with which the gin recoils.
  2. the force exerted on gunman due to recoil of the gun

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.


A 150 g ball, travelling at 30 m/s, strikes the palm of a player’s hand and is stopped in 0.05 second. Find the force exerted by the ball on the hand.


Discuss the conservation of momentum in each of the following cases :
(i) a rocket taking off from ground.
(ii) flying of a jet aeroplane.


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?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×