NECO Physics Past Questions & Answers - Page 11

52.

The term torque means

A.

the equilibrant of two concurrent forces

B.

the moment of a force about an ads

C.

the resultant of several forces acting on a body in equilibrium

D.

two coplanar forces at right angle to each other

E.

two equal and opposite forces whose lines of action do not coincide

Correct answer is B

No explanation has been provided for this answer.

53.

Inertia is the property of a body which makes the body to

A.

accelerate

B.

be reluctant to move when at rest

C.

experience friction when moving

D.

move randomly

E.

retard

Correct answer is B

No explanation has been provided for this answer.

54.

A projectile attains its maximum height when the angle of projection is?

A.

30°

B.

45°

C.

60°

D.

75°

E.

90°

Correct answer is E

Range R is maximum for angle of projection of 45º.

Maximum height is achieved with an angle of 90

55.

A stone is thrown with a speed of 10ms at an angle of 30° to the horizontal, Calculate its time of flight, (g = 10ms2)

A.

0.5s

B.

1.0s

C.

1.7s

D.

2.0s

E.

3.4s

Correct answer is B

No explanation has been provided for this answer.