Answer:
The speed of the piton before hitting the ground = 76.04 m/s
Explanation:
From the law of conservation of energy,
The kinetic energy of the piton = potential energy of the piton
Note:Before striking the ground, the potential energy of the piton is converted to kinetic energy, with no energy lost to air resistance.
1/2mv² = mgh ................... Equation 1
Where m = mass of the piton, v = speed of the piton, h = height, g = acceleration due to gravity.
making v the subject of the equation above,
v =√(2gh).......................... Equation 2
Given: h = 295 m, g = 9.8 m/s²
Substituting into equation 2
v = √(2×9.8×295)
v = √5782
v = 76.04 m/s
Thus the speed of the piton before hitting the ground = 76.04 m/s
