Click the lightest tow rope which can be used to pull a 6,000 lb pallet across the warehouse floor. a.2000 b.5000 c.1500 d.15000

B. 5000

Explanation:

The tow rope should be strong enough so that it can overcome the frictional force and pull pallet without breaking. In question following data is given:

                          Weight of pallet = W = 6000lbs  

                          Coefficient of friction = uK = 0.42

The tow rope required to pull pallet = (Weight of pallet) (Coefficient of friction)

                                                               = (W)( uK)

                                                                = (6000)(0.42)

                                                                 = 2520 lbs

5000lbs is higher value than 2520lbs. Hence, if we will use 5000lbs tow rope it can easily pull the pallet.

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6