1. You are pushing a 312N weighted sled on turf in the weight room during your workout. The coefficient of static friction between the sled and turf is 0.48 and the coefficient of kinetic friction between the sled and turf is 0.41. a. How much force must you exert to start the sled on the moon? b. How much force is required to keep the sled on the moon?

2. You are pulling your 265 N bed across the carpet to rearrange your room. The coefficient of static friction between the bed and carpet is 0.91 and the coefficient of kinetic friction between them is 0.84. a. How much force must you exert to start the bed in moon? b. How much force is required to keep the bed in moon?

3. Assume the weight of the box is 85 N for all problems below and the us = 0.21. a. If 0 = 259 will the box begin to slide down the ramp? b. If 0 = 139 will the box begin to slide down the ramp? c. If 0 = 59 will the box begin to slide down the ramp