Kinematics (NEET Physics): Questions 142 - 145 of 229

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2099 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 142

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A train has to negotiate a curve of radius 600 m. By how much should the outer rail be raised with respect to inner rail for a speed of 48 km/hr. The distance between the rails is 2 m.

Choices

Choice (4) Response
a.

12 m

b.

12 cm

c.

4.5 m

d.

4.5 cm

Question number: 143

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A body of mass 0.02 kg falls from a height of 5 meter into a pile of sand. The body penetrates the sand a distance of 5 cm before stopping. What force has the sand exerted on the body?

Choices

Choice (4) Response
a.

1.96 N

b.

-0.196 N

c.

-19.6 N

d.

0.0196 N

Question number: 144

» Kinematics » Uniform and Non-Uniform Motion

MCQ▾

Question

A fire man has to carry an injured person of mass 40 kg from the top of a building with the help of the rope which can withstand a load of 100 kg. The acceleration of the

Fireman if his mass is 80 kg, will be

Choices

Choice (4) Response
a.

9.8 m/s 2

b.

17.97 m/s 2

c.

1.63 m/s 2

d.

8.17 m/s 2

Question number: 145

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

Two bodies P and Q are moving along positive x-axis their position-time graph is shown below. If VPQ is velocity of P w. r. t. Q and VQP is velocity of Q w. r. t P, then

Select the correct answers and mark it according to the following codes:

(1) (VPQ)=(VQP)=constant

(2) VPQtowardsorigin

(3) VQPtowardsorigin

(4) (VPQ)(VQP)=constant

Choices

Choice (4) Response
a.

1, 2 and 3 are correct

b.

2 and 4 are correct

c.

1 and 3 are correct

d.

1 and 2 are correct

Sign In