REMINDER:

• please answer all the question correctly.
• answer it step by step so that it easy to follow.

1. A 2kg mass is accelerated horizontally from rest at 1 m/s2 for 20 m. Find: i) the force required, ii) ii) the work done, iii) ifi) the power required.2. A mass of 10 kg is raised from rest to a height of 20 m using a cable with a tension of 140 N. Find a) total work done b) gain in EP c) gain in EK d) power required5. An elevator has a mass of 600 kg and is lifted by a motor a distance of 10 meters in 10 second. What is its horsepower rating