Question

velocity of a particle is given by
V = 2i-3j - 6R
calculate the speed,​

Answer 1

Answer:

$\large{\mathfrak{\red{\underbrace{\overbrace{\orange{\boxed{\red{★AnswEr★}}}}}}}}$

Acceleration is asked, I can find average acceleration for a period of 2 sec.

By definition,

a = (v - u)/t ; all vectors except t.

= (2i - 3j -2i - 3j)/2 = -6j/2 = -3j m/s²

So, magnitude of (average)acceleration is 3m/s² and direction is towards (-)ve y-axis.