Question

what is energy and velocity
and explain it










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Answer 1

• In physics, energy is the quantitative property that must be transferred to an object in order to perform work on, or to heat, the object. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.

Other units: kW⋅h, BTU, calorie, eV, erg, foot-pound

In SI base units: J = kg m2 s−2

SI unit: joule

Dimension: M L2 T−2

• The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).