BITSAT 2021 | Laws of Motion Question 4 | Physics

A block of mass 10 kg rests on a rough inclined plane making an angle of 30$$^\circ$$ with the horizontal. The coefficient of static friction between the block and the plane is 0.1. The friction force on the block is

4.9 N

49$$\sqrt3$$ N

49 N

0.1 $$\times$$ 49$$\sqrt3$$ N

BITSAT 2020

MCQ (Single Correct Answer)

-1

When a body is dropped from a height h, then it hits the ground with a momentum p. If the same body is dropped from a height which is three times more than previous height, the percentage change in momentum when it hits the ground is

25%

50%

75%

100%

BITSAT 2020

MCQ (Single Correct Answer)

-1

A plane requires for take off a speed of 72 kmh^$$-$$1, the run on the ground being 50 m. The mass of the plane is 10000 kg and the coefficient of friction between the plane and the ground is 0.2. Assume that the plane accelerates uniformly during take off. The minimum force required by the engine of the plane for take off is

4.43 $$\times$$ 10⁴ N

5.96 $$\times$$ 10⁴ N

2.25 $$\times$$ 10⁴ N

3.45 $$\times$$ 10⁴ N

BITSAT Subjects

English Proficiency

Comprehension Ability Rearrangement Fill in the Blanks Grammar Vocabulary

Logical Reasoning

Verbal

Direction Sense Test Analogy Classification Series Completion Blood Relations Logical Deduction Logic Chart

Non Verbal

Completion of Figure Figure Formation Paper Folding and Cutting Figure Matrix Rule Detection Mirror Image