Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 11

A Smooth Wedge a is Fitted in a Chamber Hanging from a Fixed Ceiling Near the Earth'S Surface. a Block B Placed at the Top of the Wedge Takes Time T to Slide Down the L - Physics

MCQ

A smooth wedge A is fitted in a chamber hanging from a fixed ceiling near the earth's surface. A block B placed at the top of the wedge takes time T to slide down the length of the wedge. If the block is placed at the top of the wedge and the cable supporting the chamber is broken at the same instant, the block will.

Options

•  take a time longer than T to slide down the wedge

• take a time shorter than T to slide down the wedge

• remain at the top of the wedge

• jump off the wedge

Solution

remain at the top of the wedge

Downward gravitational force will be balanced by the upward pseudo force (because of the motion of the wedge in downward direction). The block will remain at its position, as both the box and the inclined plane are falling with the same acceleration (g).

Concept: Newton’s Second Law of Motion
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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 1
Chapter 5 Newton's Laws of Motion
MCQ | Q 11 | Page 78