Home
Class 11
PHYSICS
A ball is dropped from height 10 m . Bal...

A ball is dropped from height 10 m . Ball is embedded in sand 1 m and stops, then

A

(a) only momentum remains conserved

B

(b) only kinetic energy remains conserved

C

(c) both momenutm and kinetic energy are conserved

D

(d) neither kinetic energy nor momentum is conserved

Text Solution

Verified by Experts

The correct Answer is:
A
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 1 Subjective|32 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 1 Subjective Questions|1 Videos

  • CENTRE OF MASS, LINEAR MOMENTUM AND COLLISION

    DC PANDEY|Exercise Level 1 Assertion and Reason|15 Videos

  • CENTRE OF MASS, IMPULSE AND MOMENTUM

    DC PANDEY|Exercise Comprehension type questions|15 Videos

  • CIRCULAR MOTION

    DC PANDEY|Exercise Medical entrances s gallery|19 Videos

Similar Questions

Explore conceptually related problems

A ball is dropped from a height of 5 m onto a sandy floor and penetrates the sand up to 10 cm before coming to rest. Find the retardation of the ball in and assuming it to be uniform.

A ball is thrown vartically upward with speed 70 m//s . After 1 s, another ball is dropped from a height 185 m in the same vertical line. When and where the balls collide?

Knowledge Check

  • A ball is dropped from a height of 10 m, as it falls,

    A
    its velocity increases and acceleration decreases.
    B
    its velocity decreases and acceleration increases.
    C
    its velocity increases and acceleration remains constant.
    D
    its velocity and acceleration remains constant.

  • A ball is dropped from a height of 5 m onto a sandy floor and penetrates the sand up to 1 m before coming to rest. The retardation of the ball in sand (assuming it to be uniform) will be

    A
    `25 m//s^(2)`
    B
    `50 m//s^(2)`
    C
    `75 m//s^(2)`
    D
    `100 m//s^(2)`

  • A glass ball is dropped from height 10 m. If there is 15% loss of energy due to impact, then after one impact, the ball will go upto.

    A
    2m
    B
    4m
    C
    6m
    D
    None of these

    • Similar Questions

    Explore conceptually related problems

    A ball is dropped from a height 20 m above the ground and it rebounds with coefficient of restitution 0.5 The total time (in second) of motion of ball till it stops completely.

    A ball is thrown vertically upward with speed 40 m//s . Simultaneously, another ball is dropped from a height 200 m in the same verticle line. When and where the balls meet?

    A ball is dropped from a height of 5 m, if it rebound upto height of 1.8 m, then the ratio of velocities of the ball after and before rebound is :

    A heavy ball is dropped from a height on a pile of sand. After falling on the pile, the ball moves some distance in the sand and then stops. During its motion in the sand, the force F_w on the ball due to its weight and the force F_5 due to sand

    A ball is dropped form a height of 20 cm . Ball rebounds to a height of 10 cm . What is the loss of energy ?

    Home
    Profile