A rocket, R, rises vertically from a point A on level ground. It is observed from another point B on the ground where B is 10 km from A. When the angle of elevation has the value radians, this angle is increasing at the rate of 0.005 radians per second. Find, 4 in m s', the velocity of the rocket at that instant. [100 m s']

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.