Justin expends 600 W of power pushing a car 10 meters in 5 seconds. How much force must he exert A. 750 N

B. 300 N

C. 75 N

D. 30 N

Two trains leave a station at the same time, train a travels at a constant speed of 16 m/s. train b starts at 8.0 m/s but accelerates constantly at 1.0 m/s squared. after 10.0 seconds, which train has the greater speed?

An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?

Based on this activity, is kinetic energy always transformed into potential energy?