Kinematics-Uniform and Non-Uniform Motion [JEE (Based on NTA Guidelines-IIT Engg.) Mains Physics]: Questions 1 - 5 of 29
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Question 1
Question MCQ▾
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. | 1.63 m/s2 | |
b. | 9.8 m/s2 | |
c. | 17.97 m/s2 | |
d. | 8.17 m/s2 |
Question 2
Question MCQ▾
A body whose mass 6 kg is acted upon by two forces (8i + 10j) N and (4i + 8j) N. The acceleration produced will be (in m/s2) -
Choices
Choice (4) | Response | |
---|---|---|
a. | (3i + 2j) | |
b. | 2i + 3j | |
c. | 12i + 18j | |
d. | (G + 3) |
Question 3
Question MCQ▾
A force of () N acted on a body of mass 20 kg. The displacement after 20 sec, if it starts from rest, will be -
Choices
Choice (4) | Response | |
---|---|---|
a. | 500 m along with x axis | |
b. | 200 m along with x axis | |
c. | 100 m along with x axis | |
d. | All of the above |
Question 4
Question MCQ▾
A body whose mass 4 kg is acted upon by two forces (8i + 10j) N and (4i + 8j) N. The acceleration produced will be (in m/s2) -
Choices
Choice (4) | Response | |
---|---|---|
a. | (3i + 2j) | |
b. | 6i + 9j | |
c. | 2i + 3j | |
d. | (G + 3) |
Question 5
Question MCQ▾
An engine of mass 6 × 104 kg pulls a coach of mass 2 × 104 kg. Suppose that there is a resistance of 1 N per 100 kg acting on both coach and engine, and that the driving
Force of engine is 4800 N. The acceleration of the engine and tension in the coupling will respectively be
Choices
Choice (4) | Response | |
---|---|---|
a. | 0.04 m/s2 , 20 N | |
b. | 0.05 m/s2 , 1200 N | |
c. | 400 m/s2 , 200 N | |
d. | 0.09 m/s2 , 2000 N |