Rate of Change of Quantities

Which among the following statement is incorrect? (1) Momentum has both direction and magnitude (2) Momentum is a scalar quantity (3) Rate of change of momentum of an object is in direction of net force (4) Rate of change of momentum is a vector quantity.

If ratio of Change in quantity (DeltaQ) to original quantity Q is 0.5 and elasticity of demand is (-) 1.25, calculate the percentage change in price.

Rate of change in motion

If the rate of change of area of a circle is equal to the rate of change of its diameter, then its radius is equal to

If the rate of change of sine of an angle theta is k, then the rate of change of its tangent is

If ratio of change in quantity (AQ) to original quantity (Q) is 0.4 and elasticity of supply is 1.25, calculate the percentage change in price.

The rate of change of momentum represents