Physics - Mock Test 2

Question 11

Which of the following quantities is not dimensionless

A) Reynold's number B) Strain C) Angle D) Radius of gyration

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Question 12

A body is at rest at x = 0. At t = 0, it starts.....

A) A B) B C) C D) D

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Question 13

Three forces start acting simultaneously on a particle moving with velocity

A) A B) B C) C D) D

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Question 14

As a rocket is accelerating vertically upward at 9.8 m/s² near Earth’s surface, it releases a projectile. Immediately after release the acceleration (in m/s²) of the projectile is

A) 9.8 down B) 0 C) 9.8 up D) 19.6 up

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Question 15

A heavy ball falls freely, starting from rest. Between the third and fourth second of time it travels a distance of

A) 4.9 m B) 9.8 m C) 29.4 m D) 34.3 m

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Question 16

An object is released from rest. How far does it fall during the second of its fall

A) 4.9 m B) 9.8 m C) 15 m D) 20 m

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Question 17

A feather, initially at rest, is released in a vacuum 12 m above the surface of the earth. Which of the following statements is correct

A) The maximum velocity of the feather is 9.8 m/s B) The acceleration of the feather decreases until terminal velocity is reached C) The acceleration of the feather remains constant during the fall D) The acceleration of the feather increases during the fall

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Question 18

An object is thrown vertically upward at 35 m/s. Taking g = 10 m/s², the velocity of the object 5 s later is

A) 7.0 m/s up B) 15 m/s down C) 15 m/s up D) 85 m/s down

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Question 19

An object is thrown straight up from ground level with a speed of 50 m/s. If g = 10 m/s² its distance above ground level 6.0 s later is

A) 0.00 m B) 270 m C) 330 m D) none of these

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Question 20

An object is thrown straight up from ground level with a speed of 50 m/s. If g = 10 m/s² its distance above ground level 1.0 s later is

A) 40 m B) 45 m C) 50 m D) 55 m

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