NEET Physics: Questions 201  206 of 2099
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Passage
Velocity at a general point P (x, y) for a horizontal projectile motion is given by
V = =
α is angle made by v with horizontal in clockwise direction Trajectory equation for a horizontal projectile motion is given by x = v _{x} t = ut
y = ( ) gt ^{2 }
Eliminating t, We get y =
Question number: 201 (1 of 3 Based on Passage) Show Passage
» Kinematics » Average Speed and Instantaneous Velocity
Question
An aeroplane is flying horizontally with a velocity of 720 km/h at an altitude of 490 m. When it is just vertically above the target a bomb is dropped from it. How far horizontally it missed the target?
Choices
Choice (4)  Response  

a.  2000 m  
b.  200 m  
c.  1000 m  
d.  100 m 
Question number: 202 (2 of 3 Based on Passage) Show Passage
» Kinematics » Average Speed and Instantaneous Velocity
Question
An aeroplane is in a level flying at an speed of 144 km/hr at an altitude of 1000 m. How far horizontally from a given target should a bomb be released from it to hit the target?
Choices
Choice (4)  Response  

a.  471.34 m  
b.  671.43 m  
c.  371.34 m  
d.  571.43 m 
Question number: 203 (3 of 3 Based on Passage) Show Passage
» Kinematics » Average Speed and Instantaneous Velocity
Question
A ball rolls off top of a stair way with a horizontal velocity u m/s. If the steps are h m high and b meters wide, the ball will just hit the edge of nth step if n equals to
Choices
Choice (4)  Response  

a. 
 
b. 
 
c.  Both a. and b. are correct  
d. 

Question number: 204
» Kinematics » Uniform Circular Motion
Question
A particle completes 1.5 revolutions in a circular path of radius 2 cm. The angular displacement of the particle will be  (in radian)
Choices
Choice (4)  Response  

a.  2 π  
b.  6 π  
c.  π  
d.  3 π 
Question number: 205
» Kinematics » Motion in a Plane
Question
When the angle of elevation of a gun are 60° and 30° respectively, the height it shoots are h1 and h2 respectively, hj/h2 equal to –
Choices
Choice (4)  Response  

a.  1/3  
b.  2/1  
c.  1/2  
d.  3/1 
Question number: 206
» 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} 