Kinematics (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 197  201 of 233
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 550.00 or
Question number: 197
» Kinematics » Average Speed and Instantaneous Velocity
Question
body of mass 1 kg strikes elastically with another body at rest and continues to move in the same direction with one fourth of its initial velocity. The mass of the other body is –
Choices
Choice (4)  Response  

a.  0.6 kg 

b.  2.4 kg 

c.  4 kg 

d.  3kg 

Question number: 198
» Kinematics » Average Speed and Instantaneous Velocity
Question
A rifle man, who together with his rifle has a mass of 100 kg, stands on a smooth surface fires 10 shots horizontally. Each bullet has a mass 10 gm and a muzzle velocity of 200 m/s. What velocity does rifle man acquire at the end of 10 shots?
Choices
Choice (4)  Response  

a.  1.2 m/s 

b.  0.5 m/s 

c.  0.6 m/s 

d.  0.2 m/s 

Question number: 199
» Kinematics » Average Speed and Instantaneous Velocity
Question
The rate of burning of fuel in a rocket is 100 gm/sec. and comes out with and velocity 5 x 10 ^{3} m/s. The force exerted by gas on rocket will be –
Choices
Choice (4)  Response  

a.  2.5 x l0 ^{6 } N 

b.  2.5 x l0 ^{4 } N 

c.  500 N 

d.  300 N 

Question number: 200
» Kinematics » Average Speed and Instantaneous Velocity
Question
A bullet of mass 10 g travelling horizontally with a velocity of 600 m/s strikes a
Block of wood of mass 590 g which rests on a rough horizontal floor. After impact the block and the bullet move together and come to rest when the block has travelled a distance of 15 m. The coefficient of friction between the block and the floor will be  (Duration of impact is very short)
Choices
Choice (4)  Response  

a.  ½ 

b.  1/3 

c.  2/3 

d.  ¾ 

Question number: 201
» Kinematics » Uniformly Accelerated Motion
Question
Two blocks of masses 6 kg and 4 kg connected by a rope of mass 2 kg are resting on frictionless floor. If a constant force of 60 N is applied to 6 kg block, tension in the rope at A, B, and C will respectively be –
Choices
Choice (4)  Response  

a.  25N, 30N, 20N 

b.  20N, 30N, 25N 

c.  30N, 20N, 25N 

d.  30N, 25N, 20N 
