Is power a scalar or vector quantity?

A car of mass $1500 \mathrm{kg}$ is at rest. What is the force (in newtons) required to accelerate the car from rest to a speed of $20 \mathrm{m}/\mathrm{s}$? Distance covered by the car is $40 \mathrm{m}$.

(Only write the magnitude of the answer in the given box, no need to write the unit.)

A person lifts $80 \mathrm{kg}$ suitcase from the ground and puts on his head $2 \mathrm{m}$ above the ground. Calculate the work done by the person.