Atruck is traveling due north at 50 km/hr approaching a crossroad. on a perpendicular road a police car is traveling west toward the intersection at 45 km/hr. both vehicles will reach the crossroad in exactly one hour. find the vector currently representing the displacement of the truck with respect to the police car.

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

Which boundary is associated with the building of the himalaya mountains? convergent transform divergent hot spot

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?