Answer:
1500 J
Explanation:
Work as a result of lifting an object near Earth's surface is given by the equation W = mgh, where m is the mass, g is the acceleration due to gravity, and h is the height.
"mg" is the result of acceleration (9.8 m/sec^2) times the mass (in kg). A Newton is 1 kg*m/s^2.
1 Joule = kg*m^2/s^2 or 1N*m
W = 300N*(5m)
[Units: N*m = (1 kg*m/s^2)*(m) = kg*m^2/s^2 = 1 Joule]
W = 1500 J
