Kinematics-Average Speed and Instantaneous Velocity (NEET Physics): Questions 93 - 95 of 108

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Passage

A small particle of mass m/10 is moving horizontally at a height of 3R/2 from ground with velocity 10 m/s. A perfectly inelastic collision occurs at point P of sphere of mass m placed on smooth horizontal surface. The radius of sphere is R, (m = 10 kg and R = 0.1 m) (Assume all surfaces to be smooth).

Question number: 93 (2 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

small particle of mass m/10 is moving horizontally at a height of 3R/2 from ground with velocity 10 m/s. A perfectly inelastic collision occurs at point P of sphere of mass m placed on smooth horizontal surface. The radius of sphere is R, (m = 10 kg and R = 0.1 m) (Assume all surfaces to be smooth).

Speed of particle just after collision is

Choices

Choice (4) Response

a.

approx. 20.0 m/s

b.

approx. 15.0 m/s

c.

approx. 5.0m/s

d.

approx. 10 m/s

Question number: 94 (3 of 3 Based on Passage) Show Passage

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A small particle of mass m/10 is moving horizontally at a height of 3R/2 from ground with velocity 10 m/s. A perfectly inelastic collision occurs at point P of sphere of mass m placed on smooth horizontal surface. The radius of sphere is R, (m = 10 kg and R = 0.1 m) (Assume all surfaces to be smooth).

Speed of sphere just after collision is

Choices

Choice (4) Response

a.

35/43 m/s

b.

30/43 m/s

c.

27/43 m/s

d.

40/43 m/s

Question number: 95

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

In the above example, the height ascended or descended, as the case may be, during that time i. e. 8 sec will be -

Choices

Choice (4) Response

a.

1.744 m

b.

6.976 m

c.

17.44 m

d.

None of the above

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