Kinematics-Motion in a Straight Line (NEET Physics): Questions 10 - 14 of 47

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Question number: 10

» Kinematics » Motion in a Straight Line

MCQ▾

Question

If the displacement of a particle is (5t 2 + 2t + 5) meter then, what will be ace. at t = 5 second?

Choices

Choice (4) Response
a.

4 m/s 2

b.

20 m/s 2

c.

21 m/s 2

d.

1 0 m/s 2

Question number: 11

» Kinematics » Motion in a Straight Line

MCQ▾

Question

If the displacement of a particle is (2t 2 + t + 5) meter then, what will be ace. at t = 5 second?

Choices

Choice (4) Response
a.

21 m/s 2

b.

10 m/s 2

c.

20 m/s 2

d.

4 m/s 2

Question number: 12

» Kinematics » Motion in a Straight Line

MCQ▾

Question

the displacement x of a particle varies with time t, x = a eαt + b eβt , where a, b, α and β are positive constants.

The velocity of the particle will

Choices

Choice (4) Response
a.

Go on increasing with time

b.

Be independent of α and β

c.

Drop to zero when α = β

d.

Go on decreasing with time

Question number: 13

» Kinematics » Motion in a Straight Line

MCQ▾

Question

Two cars A and B are travelling in the same direction with velocities V 1 and v 2 (v 1 > v 2). When the car A is at a distance d ahead of the car B, the driver of the car A applied the brake producing a uniform retardation a. There will be no collision when

Choices

Choice (4) Response
a.

d > v12v122a

b.

d < (v1v2)22a

c.

d > (v1v2)22a

d.

d <v12v122a

Question number: 14

» Kinematics » Motion in a Straight Line

MCQ▾

Question

A small block slides without friction down an inclined plane starting from rest. Let Sn be the distance travelled from time t = n – 1 to t = n. then

snsn1

is

Choices

Choice (4) Response
a.

(2n1)(2n+1)

b.

(2n+1)(2n1)

c.

(2n1)2n

d.

2n(2n+1)

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