Explanation:
force is anything that allows a body to be in motion..
Answer:
Yes it will be changed
Explanation:
Lifting up requires potential energy while dropping down requires kinetic, both will have different equations
Answer:
D
Explanation:
Because first phase thr it will follow the law of thermodynamics as it will reach the equilibrium point then decrrases afterwards
Either a mountain or a sandy beach
Answer
given,
mass of baseball(m) = 144 g = 0.144 Kg
initial velocity(u) = 29 m/s
mass of brick(M) = 5.25 Kg
speed of the brick (v') = 1.32
speed of base ball after collision = ?
using conservation of momentum
m u = m v + Mv'
0.144 x 29 = 0.144 v + 5.25 x 1.32
0.144 v = -2.754
v = -19.125 m/s
b) KE before collision
KE_i = 60.55 J
KE after collision
KE_f = 30.91 J