Current will be

now just pluf in the values and Voila..
The basic definition of pressure is force/area and the scientific community defined that as the Pascal (Pa).
The answer would be slowly
No, it will only melt if the temperature is lowered. If you compress it, it will change the shape, but it will not change the state it is in (i.e. solid).
Answer: 
Explanation:
Given
Initial position of object is (4.4 i+5 j)
Final position of object is (11.6 i -2 j)
Force acting (4i-9j)
Work done is given by

Initial kinetic energy

Change in kinetic energy is equal to work done by object
