KinematicsAverage Speed and Instantaneous Velocity (NEET (NTANational Eligibility cum Medical Entrance Test) Physics): Questions 52  55 of 108
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Question number: 52
» Kinematics » Average Speed and Instantaneous Velocity
Question
Two bodies P and Q are moving along positive xaxis their positiontime 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)
(2)
(3)
(4)
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 

Question number: 53
» Kinematics » Average Speed and Instantaneous Velocity
Question
A cricket ball of mass 150 g is moving with a velocity of 12m/sec and is hit by a bat so that the ball is turned back with a velocity of 20 m/sec; the force on the ball acts for 0.01 sec, then the average force exerted by the bat on the ball will be
Choices
Choice (4)  Response  

a.  40 N 

b.  48 N 

c.  400 N 

d.  480 N 

Question number: 54
» Kinematics » Average Speed and Instantaneous Velocity
Question
A lady is walking on a level road at a speed of 8 km/h. Raindrops fall vertically with a speed of 6 km/h. Find the velocity of raindrops with respect to the men.
Choices
Choice (4)  Response  

a.  4 km/hr 

b.  3 km/hr 

c.  10 km/hr 

d.  7 km/hr 

Question number: 55
» Kinematics » Average Speed and Instantaneous Velocity
Question
A body of mass 2 kg is moving along xdefection with a velocity of 2 m/sec. If a force of 4 N is applied on it along ydirection for 1 sec, the final velocity of particle will be 
Choices
Choice (4)  Response  

a.  2√2 m/s 

b.  √2m/s 

c.  1/√2 m/s 

d.  1/2√2 m/s 
