Physics Question 4?

0 ⤊

The ratio of the potential energy to the kinetic energy of an object of mass m at a height of 40 m above ground level is 2:1. What is the speed of the object at that point? Use g = 10 m/s squared:
a. 10 m/s
b. 20 m/s
c. 30 m/s
d. 40 m/s

2007-01-27 20:54:38 · 2 answers · asked by SMS 1 in Science & Mathematics ➔ Physics

2 answers

again a simple one

mgh/1/2mv^2=2:1 = 20 m/s

2007-01-27 21:37:07 · answer #1 · answered by n nitant 3 · 0⤊ 0⤋

B.20 m/s

2007-01-28 06:09:21 · answer #2 · answered by JAMES 4 · 0⤊ 1⤋