Before a rubber ball bounces off from the floor the ball is in contact with the floor for a fraction of second Which of the following statements is correct

EASY

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 1>Q 32

A particle describe a horizontal circle of radius

0.5 m

with uniform speed. The centripetal force acting is

10 N

. The work done in describing a semicircle is

EASY

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 1>Q 33

A boy pushes a toy box

2.0 m

along the floor by means of a force of

10 N

directed downward at an angle of

60 °

to the horizontal. The work done by the boy is

EASY

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 1>Q 34

A motor of

100 H . P .

moves a load with a uniform speed of

72 km {hr}^{- 1}

. The forward thrust applied by the engine on the car is

EASY

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 1>Q 35

A body accelerates uniformly from rest to a velocity of

1 m s^{- 1}

in

15

seconds. The kinetic energy of the body will be

\frac{2}{9} J

when

' t'

is equal to [Take mass of body as

1 kg

EASY

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 1>Q 36

Two bodies

A

and

B

having masses in the ratio of

3 : 1

possess the same kinetic energy. The ratio of linear momentum of

B

to

A

is

MEDIUM

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 2>Q 1

A block of mass

0.50 kg

is moving with a speed of

2.00 m s^{- 1}

on a smooth surface. It strikes another mass of

1.00 kg

and then they move together as a single body. The energy loss during the collision is:

MEDIUM

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 2>Q 2

A uniform chain of length

2 m

is kept on a table such that a length of

60 cm

hangs freely from the edge of the table. The total mass of the chain is

4 kg

. What is the work done in pulling the entire chain on the table?

MEDIUM

TS EAMCET

IMPORTANT

Comprehensive Guide to TS EAMCET Physics. Other applicable Exams - JEE Main, VITEEE, SRM JEE, MHT-CET, K-CET, BITSAT, AMU & Other State Engg. Entrance Exams>Chapter 2 - Work, Energy and Power>Exercise 2>Q 3

Two balls of equal masses are thrown upwards along the same vertical direction at an interval of

2 s

, with the same initial velocity of

39.2 m s^{- 1}

. The two balls will collide at a height of

Before a rubber ball bounces off from the floor, the ball is in contact with the floor for a fraction of second. Which of the following statements is correct?

Important Questions on Work, Energy and Power

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