KinematicsMotion in a Plane (NEET (NTANational Eligibility cum Medical Entrance Test) Physics): Questions 6  10 of 15
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Question number: 6
» Kinematics » Motion in a Plane
Question
A force (where K is a positive constant) acts on a particle moving in the xy plane. Starting from the origin, the particle is taken along the positive xaxis to the point (a, 0) and then parallel to the yaxis to the point
(a, a). The total work done by the forces F on the particle is
Choices
Choice (4)  Response  

a.  2Ka ^{2} 

b.  Ka ^{2} 

c.  Ka ^{2 } 

d.  2Ka ^{2} 

Question number: 7
» Kinematics » Motion in a Plane
Question
A ball thrown by one player reaches the other in 2 sec. The maximum height attained by the ball above the point of projection will be about
Choices
Choice (4)  Response  

a.  2.5 m 

b.  7.5 m 

c.  10 m 

d.  5 m 

Question number: 8
» Kinematics » Motion in a Plane
Question
The path followed by a body projected along y axis is given by y = √3 x  (1/2) x2. If g = 10 m/s2, then the initial velocity of projectile will be  (x and y are in m)
Choices
Choice (4)  Response  

a.  10 √3 m/s 

b.  10 √2 m/s 

c.  2 √10 m/s 

d.  3 √10 m/s 

Question number: 9
» Kinematics » Motion in a Plane
Question
Rishabh and Bappy are playing with two different balls of masses m and 2m respectively. If Rishabh throws his ball vertically up and Bappy at an angle 0, both of them stay in our view for the same period. The heights attained by the two balls are in the ratio of
Choices
Choice (4)  Response  

a.  1: 1 

b.  2: 1 

c.  1: sec 0 

d.  1: cos 9 

Question number: 10
» Kinematics » Motion in a Plane
Question
A body is thrown at an angle 30° to the horizontal with the velocity of 30 m/s. After 1 sec, its velocity will be (in m/s) (g = 10 m/s2)
Choices
Choice (4)  Response  

a.  10√7 

b.  √10 

c.  100√7 

d.  700√10 
