Question

If a body moves in a circular path and reach back to its initial position then
1. magnitude of displacement is zero
2. distance is zero
3. both of above are correct
4. distance is equal to radius

Answer 1

Answer:

Ex 2.4

Q 1- (i)

Solution - X³+x²+x+1

X+1= 0

X= -1

= (-1)³+(-1)²+(-1)+1

=(-1)+(1)-1+1

= +1+1-1-1

= 2-0

= -2

Answer 2

Follow the given picture