This is on my test, i need help with question 3. please help

Which instrument is used to measure air temperature

Using the work energy theorem. what is the velocity of a 850kg car after starting at rest when 13,000j of work is done to it.

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?