21. A force of 52 N acts upon a 4 kg block sitting on the ground. Calculate the acceleration of the object. a. 208 m/s2 c. 13 m/s b. 0.07 m/s2 d. 12 m/s?
22. What is the mass of an object that requires a force of 25 N to accelerate at 5 m/s?? a 125 kg b. 1258 c.5 kg d.5g
23. How much force is required to accelerate an 1,500 kg truck at 2 m/s?? a. 750 N c. 3000 N b. 1000 N d. 30000 N
25. How will you increase the acceleration of a rocket tov? a. increase the mass and force b. decrease the mass and force c. increase the mass and decrease the force d. increase the force and decrease the mass
