Kinematics (NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics): Questions 226  229 of 233
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Question number: 226
» Kinematics » Average Speed and Instantaneous Velocity
Question
The rate of burning of fuel in a rocket is 50 gm/sec. and comes out with and velocity 4 x 10 ^{3} m/s. The force exerted by gas on rocket will be –
Choices
Choice (4)  Response  

a.  2.5 x l0 ^{4 } N 

b.  250 N 

c.  2.5 x l0 ^{6 } N 

d.  200 N 

Question number: 227
» Kinematics » Uniformly Accelerated Motion
Question
An automobile of mass m accelerates from rest. If the engine supplies a constant power P, the position (s) at time (t) is given by –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 228
» Kinematics » Uniformly Accelerated Motion
Appeared in Year: 2016
Question
In the given figure, represents the total acceleration of a particle moving in the clockwise direction in a circle of radius at a given instant of time. The speed of the particle is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 229
» Kinematics » Average Speed and Instantaneous Velocity
Appeared in Year: 2016
Question
Two cars P and Q start from a point at the same time in a straight line and their positions are represented by and . At what time do the cars have the same velocity?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

