Eamcet Physics - 1 st Year : Unit 4.1( Work-Power And Energy ) - Work-Power And Energy Free Online Tests | Mock Tests | Preparation | Practice Tests

Study Room

Goto

Eamcet Physics
1 st Year : Unit 4.1( Work-Power And Energy ) - Work-Power And Energy

Take Exam

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

35 / 45

A): When a person is walking horizontally with a suitcase on his head, no work is done by him against gravitational force
R): gravitational force on suitcase acts vertically downwards and motion is in horizontal direction, hence dot product becomes zero

A. Both (A) and (R) are true and (R) is the correct explanation of (A)

B. Both (A) & (R) are true but (R) is not correct explanation of (A)

C. (A) is true and (R) is false

D. (A) is false but (R) is true

E. None of the above

View Answer

Correct choice: A

Explanation:

None

35 / 45

Study Room

Lessons

Eamcet Physics 1 st Year : Unit 4.1( Work-Power And Energy ) - Work-Power And Energy

Eamcet Physics
1 st Year : Unit 4.1( Work-Power And Energy ) - Work-Power And Energy