Watt, which is a unit of power, is equal to
1) a joule divided by a second
2) a joule divided by a meter
3) a joule times a meter
4) a joule times a second

The Watt is the  unit of Electrical Power of the International System of Units that is equivalent to a Joule () per second () and the symbol that identifies this unit is :

In other words, this unit represents the amount of energy (in Joules) delivered or absorbed by an element in a given time (in seconds). The Watt is also the electric power produced by a potential difference of a Volt and an electric current of an Ampere .

It is important to note the name given to this unit of measurement is in honor of Scottish engineer and inventor James Watt, due to his contributions in the development of the steam engine.

Therefore the right answer is 1: a joule divided by a second

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

there are no contact forces mentioned on the list of choices that you've provided.