1- A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 21m/s.
ID: 2033099 • Letter: 1
Question
1- A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 21m/s. If the clay comes to a stop in 91 ms, what is th average force experienced by the clay?a- 46 N b- 34 N c- 55 N d- 67 N
2-Suppose there are two identical springs #1 and #2 with spring constant k. Both springs are attached to the ceiling and stretched with the distances x1 and x2 respectively. If the ratio of energy E1:E2 stored in the springs is equal to 1:9, the ratio of stretched distances x1:x2 is
a- 1:2 b- 1:9 c- 1:3 d- 1:8 1- A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 21m/s. If the clay comes to a stop in 91 ms, what is th average force experienced by the clay?
a- 46 N b- 34 N c- 55 N d- 67 N
2-Suppose there are two identical springs #1 and #2 with spring constant k. Both springs are attached to the ceiling and stretched with the distances x1 and x2 respectively. If the ratio of energy E1:E2 stored in the springs is equal to 1:9, the ratio of stretched distances x1:x2 is
a- 1:2 b- 1:9 c- 1:3 d- 1:8
a- 46 N b- 34 N c- 55 N d- 67 N
2-Suppose there are two identical springs #1 and #2 with spring constant k. Both springs are attached to the ceiling and stretched with the distances x1 and x2 respectively. If the ratio of energy E1:E2 stored in the springs is equal to 1:9, the ratio of stretched distances x1:x2 is
a- 1:2 b- 1:9 c- 1:3 d- 1:8
Explanation / Answer
1) average force = dp/dt
= 0.24*21 / 0.091
= 55.38 N
so option c) 55 N is the correct answer
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.