How much power is needed to move a 7 kg mass 14 m in 16 sec? Physics 1 Answer John C. Jun 8, 2017 0.17W Explanation: Power = Energy / time The mass possesses kinetic energy since it is moving. #E_k = 0.5mv^2# Velocity = Displacement / time Calculate the velocity. Calculate its kinetic energy. Calculate the power. #v_f =14/ 16 = 0.875 ms^-1# #E_k = 0.5*7*0.875^2 = 2.680 J# Power #= 2.680 div 16 = 0.17 W# Answer link Related questions How do I determine the molecular shape of a molecule? What is the lewis structure for co2? What is the lewis structure for hcn? How is vsepr used to classify molecules? What are the units used for the ideal gas law? How does Charle's law relate to breathing? What is the ideal gas law constant? How do you calculate the ideal gas law constant? How do you find density in the ideal gas law? Does ideal gas law apply to liquids? Impact of this question 1699 views around the world You can reuse this answer Creative Commons License