I have no clue sorry maybe try applying the answers and questions then I'll answer for u
Answer:
10 m/s
Explanation:
The potential energy of the roller coaster is converted to kinetic energy. According to law of transformation of energy, potential energy = kinetic energy.
mgh = ½mv².Take g as 10m/s².
150 * 10 * 50 = ½ * 150 * v².
7500 = 75v².
v² = 7500/75.
v = √100.
v= 10 m/s.
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Option (c) is correct.
Explanation:
initial velocity along vertical=0
velocity along horizontal Vx=40.20 m/s
acceleration along the vertical=9.8 m/s²
displacement along vertical,h=2 m
using the kinematic equation
h= vi*t + 1/2 g t²
2=0(t) + 1/2 (9.8)t²
t²=0.408
t=0.639 s
now the displacement along vertical= x= Vx* t
x=40.20 (0.639)
x=25.73 m
