- #1
Wanting to Learn
Problem:
A 65kg swimmer jumps off a 10.0m tower.
a. Find the swimmer's velocity on hitting the water.
b. The swimmer comes to a stop 2.0m below the surface. Find the net force exerted by the water.
Given & Equations:
v0 = 0m/s
a = 9.8m/s2
d = 10m
vf = __m/s
F = __N
vf2 = v02 + 2ad
F = ma
Work:
vf2 = v02 + 2ad
v2 = 0 + 2•9.8•10
v2 = 196
v = 14
F = m•a
F = 65•9.8
F = 137.2
Conclusion:
So I got
a. = 14m/s
b. = 137.2N
Is this correct? I just started learning force so have no idea whether that seems to be a reasonable amount of force.
Thank you in advance.
A 65kg swimmer jumps off a 10.0m tower.
a. Find the swimmer's velocity on hitting the water.
b. The swimmer comes to a stop 2.0m below the surface. Find the net force exerted by the water.
Given & Equations:
v0 = 0m/s
a = 9.8m/s2
d = 10m
vf = __m/s
F = __N
vf2 = v02 + 2ad
F = ma
Work:
vf2 = v02 + 2ad
v2 = 0 + 2•9.8•10
v2 = 196
v = 14
F = m•a
F = 65•9.8
F = 137.2
Conclusion:
So I got
a. = 14m/s
b. = 137.2N
Is this correct? I just started learning force so have no idea whether that seems to be a reasonable amount of force.
Thank you in advance.