Problem

A particle is moving in

x

y

plane. At time

t = 0

, particle is at

(1\text{m}, 2\text{m})

and has velocity

(4\hat{i} + 6\hat{j})

m/s. At

t = 4

s, particle reaches at

(6\text{m}, 4\text{m})

and has velocity

(2\hat{i} + 10\hat{j})

m/s. In the given time interval, find (a) average velocity, (b) average acceleration and (c) from the given data, can you find average speed?