Question 1

Find the speed of a car after 15 minutes which starts from rest and moves with a uniform acceleration of 30 m/min$^2$

Accepted Answer

27 km/hr

Answer

30 km/hr

Answer

20 km/hr

Answer

45 km/hr

Question 2

A particle is dropped from the ceiling of a godown and reaches the floor within one second. The height of the ceiling is approximately

Accepted Answer

4.9 m

Answer

5.9 m

Answer

6 m

Answer

3.5 m

Question 3

A force which combines with two or more forces to produce equilibrium is known as

Accepted Answer

equilibrant

Answer

resultant

Answer

component

Answer

couple

Question 4

Two forces of equal magnitude F act at an angle $	heta$ to each other. The resultant is

Accepted Answer

2Fcos$	heta$ /2

Answer

2Fsin$	heta$ /2

Answer

2Fcos$	heta$

Answer

Fcos2$	heta$

Question 5

The product of force and the perpendicular distance from the force to a point is known as

Accepted Answer

moment of force

Answer

moment of couple

Answer

work

Answer

couple

Question 6

The force which produces an acceleration of 1 m/s$^2$ in a mass of 1 kg is one:

Accepted Answer

Newton

Answer

joule

Answer

erg

Answer

kgm

Question 7

A body is thrown vertically upwards with a velocity of 980 cm/s. Then the time the body will take to reach the ground will be

Accepted Answer

2 s

Answer

10 s

Answer

9.8 s

Answer

1 s

Question 8

A force system in which all forces are on the same plane and meet at a common point is known as

Accepted Answer

coplanar concurrent

Answer

non coplanar non concurrent

Answer

coplanar non concurrent

Answer

non coplanar concurrent

Question 9

Power is defined as

Accepted Answer

rate of doing work

Answer

power of doing work

Answer

all of the given

Answer

capacity of doing work

Question 10

Which of the following is not a vector quantity?

Accepted Answer

distance

Answer

displacement

Answer

impulse

Answer

acceleration

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