Question

can anyone help me with the following question​

Answer 1

Answer:

4)16J

Explanation:

1/2 ×m×v^2

=1/2×2×(-4)^2

=16J

Answer 2

Answer:

16J

Explanation:

given x=0 v= 4 & m=2kg

therefore at x=3 velocity is decreasing and is constant v=-4

K.E=1/2 mv^2

=1/2 *2*-4^2

= 16 J