An object starts linear motion with a velocity ‘u’ and under uniform acceleration ‘a’, it acquires a velocity ‘v’ in time ‘t’. Draw its velocity time graph. From this graph, derive

the position-time relation and position -velocity relation.

If angle "a" is 25°, angle "b" is: a) equal to angle c b) less than angle c c) greater than angle c

Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".

Frequency of electromagnetic waves that a radio station is assigned is called