Answer:
Explanation:
Maximum vertical distance or height = h = 35.4 m
let's consider the initial speed at the top is zero.
As the roller coaster is coming from top to bottom there is the conversion of gravitational potential energy into kinetic energy. So we will consider the law of conservation of energy.
As in this case,
Loss in potential energy = Gain in Kinetic energy
mgh = 1/2mv²
mass will cancel out will mass.
gh = 1/2 v²
v = √2gh
v = √2×9.8×35.4
v =√693.84
v = 26.34 m/s
The rollar coaster will have the maximum speed of 26.34 m/s when it reaches the bottom if we ignore the frictional forces.
Answer:
As the ski jumper starts moving downhill, some of his potential energy changes into kinetic energy (KE). Kinetic energy moves him down the slope to the ramp. When the ski jumper takes off from the ramp, some of his kinetic energy is changed back into potential energy as he rises in the air.
Explanation: hope this helps
Without wind, many of the trees and plants you see today would not be there. The wind blows seeds through the air, like wish flowers. Also, some electricity wouldn't work because some people's electricity comes from wind turbines. Wind turbines are generated by wind :)
<h2>
Answer:5
,133.6
,51.18
</h2>
Explanation:
Let , be the horizontal and vertical components of velocity.
Question a:
Horizontal component of velocity is the ratio of range and time of flight.
So,horizontal component of velocity is
So,
Question b:
Time of flight=
So,
Maximum height is given by
So,maximum height is
Question c:
The vertical velocity is already calculated in Question b.