Question

Juliette (m = 59.0 kg) uses a giant kite to pull herself along a smooth surface. A s she approached a ramp, she gains a speed of 11.3 before letting go of the kite and launching off the skate ramp. Using ENERGY equations calculate how high above the ramp she goes (Hint: use the top of the ramp as h1 = 0 m).

Answer 1

h = 6.41 m

Step-by-step explanation:

For this exercise we use the law of conservation of energy

starting point. When it's on the ramp

Em₀ = K = ½ m v²

final point. When it is at the highest height

Em_f = U = m g h

We assume that when it is at the highest height it will stop and possibly return to the ramp

as there is no friction, the energy is conserved

Em₀ = Em_f

½ mv² = m g h

h =
`(1)/(2) (v^2)/(g)`

let's calculate

h = ½ 11.3² / 9.8

h = 6.41 m