Related InterviewSolutions

• (a) Write an expression for the change in momentum of a body of mass m moving with velocity v if (i) v ≪ c and (ii) v ⟶ c.(b) State the condition when the change in the momentum of a body depends only on the change in its velocity.
• Calculate the acceleration produced in a body of mass 50g when acted upon by a force of 20 N.
• A vehicle is acted upon by a force of 120kgf. If the mass of vehicle is 80kg. What is the acceleration of the vehicle? [take g = 10ms-2]
• How much acceleration will be produced in a body of mass 10kg acted upon by a force of 2kgf? [g = 9.8ms-2] 
• State the principal of moments. Give one device as application of it.