KinematicsUniformly Accelerated Motion (NEET (National Eligibility cum Medical Entrance Test) Physics): Questions 6  10 of 23
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: 6
» Kinematics » Uniformly Accelerated Motion
Question
A grind stone starts from rest and has a constantangular acceleration of 6.0 rad/sec2. The angular displacement and angular velocity, after 4 sec. will respectively be
Choices
Choice (4)  Response  

a.  32 rad, 64 rad/s 

b.  48 rad, 24 rad/s 

c.  64 rad, 32 rad/s 

d.  16 rad, 32 rad/s 

Question number: 7
» Kinematics » Uniformly Accelerated Motion
Question
The angular velocity of a particle is given by co = 5t  3t ^{2} + 1, the time when its angular acceleration decreases to be zero will be 
Choices
Choice (4)  Response  

a.  0.25 sec 

b.  1.2 sec 

c.  0.83 sec 

d.  25 sec 

Question number: 8
» Kinematics » Uniformly Accelerated Motion
Question
The magnitude of the linear acceleration of the particle moving in a circle of radius 10 cm with uniform speed completing the circle in 4 s, will be –
Choices
Choice (4)  Response  

a.  2.5 π ^{2} cm/s ^{2} 

b.  2.5π cm/s ^{2} 

c.  5 π cm/s ^{2} 

d. 
5 π ^{2} cm/s ^{2} 

Question number: 9
» Kinematics » Uniformly Accelerated Motion
Question
The total mass of an elevator with a 80 kg man in it is 1000 kg. This elevator moving upward with a speed of 8 m/sec, is brought to rest over a distance of 16m. The tension T in the cables supporting the elevator and the force exerted on the man by the elevator floor will respectively be
Choices
Choice (4)  Response  

a.  78 N, 624 N 

b.  624 N, 78 N 

c.  624 N, 7800 N 

d.  7800 N, 624 N 

Question number: 10
» Kinematics » Uniformly Accelerated Motion
Question
A force produces an acceleration of 5 m/s ^{2} in a body and same force an acceleration of 15 m/s ^{2} in another body. The acceleration produced by the same force when applied to the combination of two bodies will be –
Choices
Choice (4)  Response  

a.  0.667 m/s ^{2} 

b.  3.75 m/s ^{2} 

c.  20 m/s ^{2} 

d.  10 m/s ^{2} 
