It is actually are tools that make work easier C because i just had it on study island
A) change in ht after 180m = 180 * sin(4-deg.) = 12.56m
net work done by gravity on the cyclist = mass * gravity * height diff.
= 85 * 9.8 * 12.56
= 10470J
= 10.5kJ
B) Kinetic energy = 1/2 * mass * vel.^2 = work done by gravity = 10470J
vel.^2 = 10470 * 2 / 85 = 246.4
vel. = 15.7m/s
Answer:
11.5
Explanation:
you do 12(sin 73.3) because its on the y you do sin
The first person went further. s = d/t
Hope this helps you out APHDenmark! :D
