If a #2 kg# object is constantly accelerated from #0m/s# to #15 m/s# over # 12s#, how much power musy be applied at #t= 1 #? Physics Work and Energy Power 1 Answer Spencer C. · Junaid Mirza Mar 8, 2018 #"18.75 watts"# is the power constantly applied. Explanation: First, find the total energy at the end, in this case kinetic energy #1/2×"2kg"× ("15 m/s")^2 = "225 joules"# Then divide #"225 joules"# by the time in seconds to get the average power in watts: #"225 Joule"/"12 s" = "18.75 watts"# Answer link Related questions What is power? How are work and power related? How are force and power related? How does power affect work? How does power differ from energy? How does power change with voltage? How does power relate to torque? How does work relate to conservation of energy? How does work relate to gravitational potential energy? What is horsepower? See all questions in Power Impact of this question 1421 views around the world You can reuse this answer Creative Commons License