Author Question: A simple pendulum, 2.00 m in length, is released from rest when the support string is at an angle of ... (Read 78 times)

brutforce · **on:** Jul 28, 2018

A simple pendulum, 2.00 m in length, is released from rest when the support string is at an angle of 35.0 from the vertical. What is the speed of the suspended mass at the bottom of the swing? (g = 9.80 m/s2 and ignore air resistance)
a. 0.941 m/s
c. 2.66 m/s
b. 1.88 m/s
d. 1.33 m/s

Question 2

Which of the following increases the internal energy of a solid metal rod?
a. raising it to a greater height
c. having the rod conduct heat
b. throwing it through the air
d. having the rod absorb heat