Engineering Board Exam Reviewer · Engineering Mechanics · medium

A machine exerts a constant force of 200 N on an object moving at a constant velocity of 3 m/s in the same direction as the force. What is the power delivered?

  1. 66.67
  2. 203
  3. 300
  4. 600

Answer

D. 600

Solution

Power = Force × velocity = 200 × 3 = 600 W.

More Engineering Mechanics questions

  1. An object starts from rest and slides down a frictionless slope, descending a vertical height of 5 m. Using conservation of energy, what…
  2. What is the kinetic energy of a 5 kg object moving at 4 m/s?
  3. A force of 50 N is applied at an angle of 0° to the direction of motion, moving an object a distance of 3 m. How much work is done by the…
  4. A 20 kg block slides down a 50° incline with a coefficient of kinetic friction of 0.1. What is the block's acceleration down the incline?…
  5. A net force acts on a 22 kg object, giving it an acceleration of 5 m/s2. What is the magnitude of the net force?
  6. Two masses, 13 kg and 9 kg, are connected by a light inextensible string over a frictionless, massless pulley (an Atwood machine). What is…
  7. A 18 kg block slides down a 45° incline with a coefficient of kinetic friction of 0.3. What is the block's acceleration down the incline?…
  8. A net force acts on a 20 kg object, giving it an acceleration of 4.5 m/s2. What is the magnitude of the net force?
  9. Two masses, 12 kg and 8 kg, are connected by a light inextensible string over a frictionless, massless pulley (an Atwood machine). What is…
  10. A 16 kg block slides down a 40° incline with a coefficient of kinetic friction of 0.26. What is the block's acceleration down the incline?…

All Engineering Mechanics Reviewer questions