Laws of Motion (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics): Questions 9 - 11 of 21

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Question number: 9

» Laws of Motion » Laws of Friction

MCQ▾

Question

A box when dropped from a certain height reaches the ground with a speed V. When it slides from rest from the same height down a rough inclined plane inclined at an angle 60° to the horizontal, it reaches the ground with a speedEquation . The coefficient of sliding friction between the box and the plane is (acceleration due to gravity is 10 ms-2)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 10

» Laws of Motion » Static and Kinetic Friction

Appeared in Year: 2014

MCQ▾

Question

A box when dropped from a certain height reaches the ground with a speed V. When it slides from rest from the same height down a rough inclined plane inclined at an angle 45° to the horizontal, it reaches the ground with a speedEquation . The coefficient of sliding friction between the box and the plane is (acceleration due to gravity is 10 ms-2)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 11

» Laws of Motion » Law of Conservation of Linear Momentum

MCQ▾

Question

A stationary U238 nucleus emits on α-particle (2He4) with velocity Equation and kinetic energy 3.8 MeV. What is the velocity of the residual nucleus?

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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