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The proper use of lubricants cannot reduce:A. Static frictionB. Rolling frictionC. InertiaD. Sliding friction

ANSWER: C

Which of the below statement is not true in case of Friction.A. Friction acts opposite to the direction of motionB. Friction opposes relative motion between objects that are in contactC. Friction sometimes can also accelerate the objectsD. Static friction is slightly larger than sliding friction

ANSWER: A

Tyres are circular in shape because:A. Rolling friction is less than sliding frictionB. They require less materialC. It is easy to inflate circular tyresD. They are easy to design

ANSWER: A

A body begins to slide over the surface of another, when pulled with a force of10N. If we pull it with a force of 5N, the force of friction that will come in to play is :A. 0B. 0.5NC. 5ND. 50N

ANSWER: C

A 1000kkg aeroplane moves in a straight flight with a constant velocity. The force of air friction is 1800N. The net force on the plane isA. Zero

B. 1800NC. 9000ND. 3600N

ANSWER: A

When a block moves on a rough horizontal surface, its speedA. IncreasesB. DecreasesC. Remains the sameD. depends on the mass of the block

ANSWER: B

A.B.C.D.

ANSWER: A

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A.B.C.D.

ANSWER: A

A.B.C.D.

ANSWER: A

A.B.C.D.

ANSWER: A

A.B.C.D.

ANSWER: A

A.B.C.D.

ANSWER: A

A.B.C.D.

ANSWER: A

A.B.

C.D.

ANSWER: A

A.B.C.D.

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ANSWER: A