Hello, im a late enrolee. Trying to catch up. Can you help me to solve these questions? Thank you!

A B Okg box slides down a 2.0m long surface that is inclined at 53* below the horizontal. The coefficient of kinetic friction between the package and the surface is 0.40. Which of the following forces does positive work on the box? O Normal Force ) Frictional Force O Gravity Tension Force A constant force of 40 N is applied as shown to a block which undergoes a displacement of 8.5 m to the right along a frictionless surface while the force acts. What is the work done by the force? F O oJ 170 J O -170 J O 294J O -294J Car A has a mass of 1000 kg and a speed of 60 km/h, and Car B has a mass of 2000 kg and a speed of 30 km/h. The kinetic energy of Car A is . O The same as Car B O Equal as that of Car B O Twice that of Car B Q) Four times that of Car B The product of the force exerted on an object and distance which the object travelled. O Work Energy O Power O Acceleration