Answer:
Explanation:
Velocity of projection can be calculated from conservation of mechanical energy .
Stored potential energy of spring = kinetic energy of mouse
= 1/2 k x ² = 1/2 m v²
k is spring force , x is compression , m is mass of mouse and v is its velocity
60.1 x .131² = .0187 x v²
v² = 55.15
v = 7.42 m / s
If angle of projection be θ
Given
7.42 cosθ = 2.25
θ = 72 degree .
maximum height achieved
v² sin²θ / 2g
= (55.15 / 2 x 9.8) x sin²72
= 2.54 m .
