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Exam (elaborations)
Linear Momentum and Collisions
Linear Momentum and Collisions 
 ANSWERS TO QUESTIONS 
 *Q9.1 (a) No. Impulse, F∆t, depends on the force and the 
time for which it is applied. 
 (b) 
No. Work depends on the force and on the distance 
over which it acts. 
 *Q9.2 The momentum magnitude is proportional to the speed and 
the kinetic energy is proportional to the speed squared. 
 (i) 
(ii) 
The speed of the constant-mass object becomes 
 4 times larger and the kinetic energy 16 times 
larger. Answer (a). 
 The speed an...