1. A block of mass 1 kg is hit by a force of magnitude 5 N which causes the block to have an acceleration of magnitude a. If the same block is hit by a force of magnitude 40 N, then which of these is the new magnitude of the acceleration of the block? A. 2.8284a B. one eight of a C. one/64 of a D. 8a E. 64a 2. A block of mass m is hit by a force of magnitude F which causes the block to have an acceleration of magnitude a. If the same block is hit by a force of magnitude 19F, then the acceleration of the block will have what magnitude? A. a B. 19a C. one nineteenth of a D. 361a E. zero 3. A block of mass 1 kg is hit by a variety of different forces on a floor with no frictionEach force results in a different acceleration. Knowing what you know about the form of Newton's 2nd law, what is the shape of a graph of force vsacceleration for this mass? A. quadratic B. linear C. cubic D. power law to the 4th power E. power to the -3 power 4. A block of mass m is hit by a force which causes the block to have an acceleration of magnitude aIf the same force hits a second block of mass 17m, then the acceleration of the second block will have what magnitude? A. 17a B. a C. one seventeenth of a D. 289a E. zero 5. A block of mass 9 kg is hit by a force of magnitude which causes the block to have an acceleration of magnitude a. If a second block of mass 45 kg is hit by the same force, then which of these is the magnitude of the acceleration of the second block? A. 2.2361a B. a C. one/25 of a D. one fifth of a E. 25a 6. A block of mass is hit by a force of magnitude F which causes the block to have an acceleration of magnitude a. If a second block of mass m2 is hit by the same force of magnitude F which causes the block to have an acceleration of magnitude 2a, then which of these could be the two masses? A. m1=200 kg; m2=100 kg B. m1=50 kg; m2= 25kg C. m1= 100 kg; m2= 50kg D. m1=10 kg; m2=5 kg E. any of these