A20.0 kg object is at rest, and then speeds up to 16.0 m/s. how much work was done on this system?

Answer : Work done, W = 2560 J.

Explanation :

It is given that,

The mass of an object, m = 20 kg

Initial speed of the object, u = 0

Final speed of the object, v = 16 m/s

We know that the work done by an object is equivalent to the change in kinetic energy.

So,

So, the work done on this system is 2560 J.

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

-reverse card

the following is queen elizabeth’s purposes:

- to encourage the parliament that the technique of picking successors to the seat based merely on birthright needs to be reviewed.

- (not) to convince the parliament that her kid should not be measured as a likely choice for heir to the english power.

- to persuade the parliament that merely since she has a child does not assure that the kid will be a capable leader.

- to sway the parliament how shattering it could be if they proceeded discourteously concerning her or her child.