Students set up an experiment with a small block on a ramp. The block of mass M=3.0 kg is released from rest at the top of the c

Question

3 years ago

13

Students set up an experiment with a small block on a ramp. The block of mass M=3.0 kg is released from rest at the top of the c

urved ramp. The length of the ramp as measured along the curve is L=3.0 m, and the height is h=1.5 m, as shown. There is negligible friction between the small block and the ramp.
The speed of the block at the bottom of the ramp is most nearly
A. 0
B. 5.5 m/s
C. 7.7 m/s
D. 9.5 m/s
E. 13 m/s

Physics

1 answer:

ratelena [41] · Answer 1 · 2022-12-05T22:21:05+03:00

ratelena [41]3 years ago

3 0

Answer:

Explanation:

potential energy will be converted into kinetic energy

P E = mgh

K E = 1/2 m V²

mgh = 1/2 m V²

V² = 2gh

V= √ 2gh

√ (2 x 9.8 x 1.5)

= 5.5 m /s