A farmer lifts a bale of hay to a hayloft that is 11 m off the ground. If he uses a force of 280 N, how much work does the farmer do?
O A. 3080
о
B. 800 J
O
C. 2100 J
о
D. 1590 J

Helppp

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.