Author Question: A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20 above the ... (Read 44 times)

james · **on:** Jul 29, 2018

A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20 above the horizontal. How far does the jumper jump?

A) 3.4 m
B) 6.2 m
C) 9.4 m
D) 15 m
E) 18 m

Question 2

Two equal point charges of magnitude 4.0 C are situated along the x-axis at x1 = -2.0 m and x2 = -2.0 m. What is the electric potential energy of this system of charges?

A) -36 mJ
B) 36 mJ
C) 0 J
D) -72 mJ
E) 72 mJ