IIT JEE : Laws Of Motion QUESTIONS AND ANSWERS :: part1 : 1 to 5
Following IIT JEE Entrance Multiple choice objective type questions and answers will help you in Maths, Physics and Chemistry 2024 examinations :
1.A block of mass 4 kg is kept on a rough horizontal surface. The coefficient of static friction is 0.8. If a force of 19 N is applied on the block parallel to the floor, then the force of friction between the block and floor is: |
| 32N |
| 18N |
| 19N |
| 9.8N |
2.A body is at rest on the surface of the earth. Which of the following statements is correct? |
| No force is acting on the body |
| Only weight of the body acts on it |
| Net downward force is equal to the net upward force |
| None of the above statement is correct |
3.A chain lies on a rough horizontal table. It starts sliding when one-fourth of its length hangs over the edge of the table. The coefficient of static friction between the chain and the surface of the table is: |
| 1/2 |
| 1/3 |
| 1/4 |
| 1/5 |
4.An open knife edge of mass 200 g is dropped from height 5 m on a cardboard. If the knife edge penetrates distance 2 m into the cardboard, the average resistance offered by the cardboard to the knife edge is: |
| 7N |
| 25N |
| 35N |
| none of these |
5.A spring balance is attached to the ceiling of a lift. A man hangs his bag on the spring and the spring reads 49 N, when the lift is stationary. If the lift moves downward with an acceleration of 5 m/square second, the reading of the spring balance will be: |
| 24N |
| 74N |
| 15N |
| 49N |
More Laws Of Motion QUESTIONS AND ANSWERS available in next pages
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