Question 9 (1 point) Compared to a sports car moving at 30 km per hour . the same sports car moving at 90 km per hour has __ a three times as much momentum b a decrease in momentum C the same momentum d twice as much momentum Question 10 (1 point) During the wall vs. bed sheet experiment, a 0 .03 kg egg is thrown at the wall with a force of 6N. The time of impact was 0.06 seconds, what was the impulse exerted on the egg. a 120Ncdot s b 0.36Ncdot s C 3.6Ncdot s d 12Ncdot s

Question 9:<br />The momentum of an object is given by the formula:<br /><br />\[ \text{momentum} = \text{mass} \times \text{velocity} \]<br /><br />Since the mass of the sports car remains constant, the momentum is directly proportional to its velocity. Therefore, if the velocity of the sports car increases from 30 km/h to 90 km/h, the momentum will also increase by a factor of 3.<br /><br />So, the correct answer is:<br />a) three times as much momentum<br /><br />Question 10:<br />Impulse is defined as the change in momentum of an object, which can be calculated using the formula:<br /><br />\[ \text{impulse} = \text{force} \times \text{time} \]<br /><br />Given that the force exerted on the egg is 6 N and the time of impact is 0.06 seconds, we can calculate the impulse as follows:<br /><br />\[ \text{impulse} = 6 \, \text{N} \times 0.06 \, \text{s} = 0.36 \, \text{N} \cdot \text{s} \]<br /><br />So, the correct answer is:<br />b) 0.36 N·s