The law of conservation of mass states that mass can be destroyed during a chemical change is TRUE
That is true because if the object is moving at Forceful speeds than it will lose more of its kinetic energy
Answer:
Explanation:
Let the velocity be v
Total energy at the bottom
= rotational + linear kinetic energy
= 1/2 Iω² + 1/2 mv² ( I moment of inertia of shell = mr² )
= 1/2 mr²ω² + 1/2 mv² ( v = ω r )
= 1/2 mv² +1/2 mv²
= mv²
mv² = mgh ( conservation of energy )
v² = gh
v = √gh
= √9.8 x 1.8
= 4.2 m /s
C and D are units of length or distance.
A is a measured angle.
B is a unit of angular measurement.
