5. In a physics lab, Frank and Eunice use a hanging mass and pulley system to exert a 2.45 N rightward force on a 0.500-kg cart to accelerate it across a low-friction track. If the total resistance force to the motion of the cart is 0.72 N, then what is the cart's acceleration? Fgrav = 4.90 N; Fnorm = 4.90 N; Fnet = 1.73 N, right; a = 3.46 m/s/s, right . Use Newton's second law to predict the effect of an alteration in mass or net force upon the acceleration of an object. a. An object is accelerating at a rate of 8 m/s when it suddenly has the net force exerted upon increased by a factor of 2. The new acceleration will be m / s b. An object is accelerating at a rate of 8 m/s when it suddenly has the net force exerted upon decreased by a factor of 2. The new acceleration will be m / s c. An object is accelerating at a rate of 8 m/s when it suddenly has its mass increased by a factor of 2. The new acceleration will be m / s. d. An object is accelerating at a rate of 8 m/s when it suddenly has its mass decreased by a factor of 4. The new acceleration will be m/s e. An object is accelerating at a rate of 8 m/s when it suddenly has the net force exerted upon increased by a factor of 2 and its mass decreased by a factor of 4. The new acceleration will be m / s. . f. An object is accelerating at a rate of 8 m/s when it suddenly has the net force exerted upon increased by a factor of 4 and its mass increased by a factor of 2. The new acceleration will be m/s . g . An object is accelerating at a rate of 8 m/s when it suddenly has the net force exerted upon increased by a factor of 3 and its mass decreased by a factor of 4. The new acceleration will be m/s