A pendulum is used in a large clock. The pendulum is raised to its maximum height of 0.3 m and has a mass of 5.2 kg. What is the speed of the pendulum as it reaches its lowest point?

A. 4.2 m/s
B. 1.9 m/s
C. 3.1 m/s
D. 2.4 m/s

Question

A pendulum is used in a large clock. The pendulum is raised to its maximum height of 0.3 m and has a mass of 5.2 kg. What is the speed of the pendulum as it reaches its lowest point?

 		A.	4.2 m/s
 		B.	1.9 m/s
 		C.	3.1 m/s
 		D.	2.4 m/s

wolfe8 · Answer

Well, at the lowest position, the kinetic energy is the highest. This means, the total potential energy is converted to the kinetic energy. PE= mgh, KE=1/2mv^2

anonymous · Answer

I got 2.4 
sound correct? @wolfe8

wolfe8 · Answer

Sounds right to me.