KinematicsAverage Speed and Instantaneous Velocity (NEET Physics): Questions 40  42 of 108
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Question number: 40
» Kinematics » Average Speed and Instantaneous Velocity
Question
Choose the correct options
(1) A ball is dropped from the window of a moving train on horizontal rails, the path followed by the ball as observed by the observer on the ground is parabolic path.
(2) If T be the total time of flight of a current of water and H be the maximum height attained by it from the point of projection, then H/T will be (1/4) u sin 0
(u = projection velocity and 0 = projection angle)
(3) A hunter aims his gun and fires a bullet directly at a monkey on a tree. At the instant bullet leaves the gun, monkey drops, the bullet misses to hit the monkey.
(4) If a baseball player can throw a ball at maximum distance = d over a ground, the maximum vertical height to which he can throw it, will be d
(Ball have same initial speed in each case)
Choices
Choice (4)  Response  

a.  2 and 4  
b.  1 and 2  
c.  1 and 3  
d.  1, 2 and 3 
Question number: 41
» Kinematics » Average Speed and Instantaneous Velocity
Question
A particle moves in a circle of radius 20cm with a linear speed of 10m/s. The angular velocity will be –
Choices
Choice (4)  Response  

a.  100 rad/s  
b.  50 rad/s  
c.  25 rad/s  
d.  75 rad/s 
Question number: 42
» Kinematics » Average Speed and Instantaneous Velocity
Question
A car driver is negotiating a curve of radius 200 m with a speed of 15 km/hr. The angle through which he has to lean from the vertical will be –
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
