Physics Past Questions and Answers

Which of the following units is equivalent to kgms<sup style='font-size: smaller;'>-1</sup>?

A jet engine develops a thrust of 270Ns when the velocity of the exhaust gases relative to the engine is 300ms<sup style='font-size: smaller;'>-1</sup>. What is the mass of the material ejected per second?

A man walks 8km north and then 5km in a direction 60<sup style='font-size: smaller;'>o</sup> east of north. Find the distance from his starting point

An elevator of mass 4800kg is supported by a cable which can safely withstand a maximum tension of 60 000N. The maximum upward acceleration the elevator can have is

A constant force of 40N acting on a body initially at rest gives an acceleration of 0.1ms<sup style='font-size: smaller;'>-2</sup> for 4s. Calculate the work done by the force