The energy associated with the stone from a height of 7.70 m can be calculated by multiplying the mass, gravitational acceleration and height. We do as follows:
Energy = mgh
Energy at 7.70 m = m(9.81)(7.70) = 75.537m
Energy at 5.25 m = 0.5mv^2 =75.537m
v = 12.29 m/s
Answer:
10N
Explanation:
Equation: ΣF = ma
Fapp = ma
Fapp = (2kg)(5m/s^2) (im guessing you mean 5.00 m/s^2 not m/s)
Fapp = 10*kg*m/s^2
Fapp = 10N
Apply the formula
Pressure = (Density of water) × (acceleration due to gravity) × (depth of the fish)
; Pressure = 1000 × 10 × 10
; Pressure on the fish = 100 000 pascals