JAMB Physics Past Questions & Answers - Page 118

587.

The acceleration of the system show above is

A.

2ms-2

B.

4ms-2

C.

6ms-2

D.

8ms-2

Correct answer is B

No explanation has been provided for this answer.

588.

The value of T in the figure above is

A.

10.0N

B.

11.8N

C.

20.0N

D.

40.0N

Correct answer is D

No explanation has been provided for this answer.

589.

In the above fig, PQ and R are vectors, which of the following options, gives a correct relationship between the vectors?

A.

P = Q + R

B.

P = Q - R

C.

P = R - Q

D.

P + Q + R = O

Correct answer is A

Addition of vectors:

P = Q + R 

590.

In the curve above, PQRST represents an alternating voltage of frequency 50Hz. The time interval between points P and R on the graph is

A.

25s

B.

1/50s

C.

1/100s

D.

1/200s

Correct answer is C

No explanation has been provided for this answer.