Home
Class 11
PHYSICS
A curved suface is shown in figure. The ...


A curved suface is shown in figure. The portion BCD is free of friction. There are three spherical balls of identical radii and masses. Balls are released from rest one by one from A which is at a slightly greater height than C.
Wioth the surface AB, ball 1 has large enough friction to cause rolling down without slipping, ball 2 has a small friction and ball 3 has a negligible friction.
(a) For which ball is total mechanical energy conserved?
(b) Which ball(s) can reach D?
(c )For ball which do not reach D, which of the balls can reach back A?

A

1 and 2

B

1

C

2

D

Cannot be predicted

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY AND POWER

    NCERT FINGERTIPS|Exercise The Potential Energy Of A Spring|6 Videos

  • WORK , ENERGY AND POWER

    NCERT FINGERTIPS|Exercise Various Forms Of Energy : The Law Of Conservation Of Energy|6 Videos

  • WORK , ENERGY AND POWER

    NCERT FINGERTIPS|Exercise The Concept Of Potential Energy|9 Videos

  • WAVES

    NCERT FINGERTIPS|Exercise Assertion And Reason|15 Videos

Similar Questions

Explore conceptually related problems

A ball released from rest from the roof of a building of height 45 m at t = 0. Find the height of ball from ground at t = 2s.

There are 2 identical white balls,3 identical red balls and 4 green balls of different shades. The number of ways in which they can be arranged in a row so that atleast one ball is separated from the balls of the same colour,is

A cannot ball and a marble ball roll from rest down an incline. Which goes to the buttom first ?

Three metallic spherical balls of radii 3 cm, 4 cm and 5 cm are melted and recast into a big spherical ball. Find the radius of this big ball.

A homogeneous ball is placed on a plane making an angle theta with the horizontal. At what values of the coefficient of friction mu with the ball roll down the plane without slipping ? .

A spherical ball of lead has been melted and meade in to smaller balls of half the radius of the original one. How many balls can be made?

A bag contains 6 red balls and 10 green balls. 3 balls are drawn from it one by one randomly without replacement. If the third ball drawn is red, then the probability that first two balls are green is:

A friction wire AB is fixed on a sphere of radius R. A very small spherical ball slips on this wire. The time taken by the ball to slip from A to B.

If a body (ball) is rolling on a surface without slipping, no frictional force acts on it In the case of rolling without slipping point of contacts are relatively at rest.