Navigate

A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m.

A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m. The power of the source is

Options

(a) 20 W
(b) 25 W
(c) 40 W
(d) 50 W

Correct Answer:

20 W

Explanation:

Velocity, v = displacement / time = 6/3 = 2 m/s

.·. Power, P = Fv = 10 × 2 = 20 W

OA2006
admin:

Related Questions

  1. Radiofrequency choke uses core of
  2. Pick out the statement ehich is incorrect?
  3. If Q, E and W denote respectively the heat added, change in internal energy
  4. A Si and a Ge diode has identical physical dimensions. The bandgap in Si is larger
  5. An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min