HELP ME PLEASE A motor is used to lift a 10 kg mass 2 m above the ground in 4 s. If the power input to the motor is 100 mathbb W what is the efficiency of the motor?
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What are the three ways that an object can accelerate

Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?