Kinematics-Motion in a Straight Line (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 27 - 29 of 47

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Question number: 27

» Kinematics » Motion in a Straight Line

MCQ▾

Question

The position of a particle moving in the xy-plane at any time t is given by x = (4t 2 - 8t) metres, y = (5t 2 - 10t) metres. Select the correct statement about the moving particle from the following

Choices

Choice (4) Response

a.

The velocity of the particle is zero at t = 1 second

b.

The velocity of the particle is zero at t = 0 second

c.

The acceleration of the particle is zero at t = 0 second

d.

The velocity and acceleration of the particle are never zero

Question number: 28

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A car accelerates from rest at a constant rate Equation for some time, after which it decelerates at a constant rate β and comes to rest. If the total time elapsed is t, then the maximum velocity acquired by the car is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 29

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A ball is thrown vertically upwards. Which of the following graphs represent velocity-time graph of the ball during its flight? (Air resistance is neglected)

Choices

Choice (4) Response

a.

b.

velocity-time graph of the ball - Choice B

Velocity-Time Graph of the Ball - Choice B

velocity-time graph of the ball - Answer B

c.

velocity-time graph of the ball - Choice C

Velocity-Time Graph of the Ball - Choice C

velocity-time graph of the ball -Answer c

d.

velocity-time graph of the ball -Choice D

Velocity-Time Graph of the Ball -Choice D

velocity-time graph of the ball - Answer D

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