(ii) Describe and explain how the horizontal component of the water jet varies from point X to point Y. (2 marks)
(ii) Air resistance is said to be negligible in the question and since air resistance would be the only horizontal force acting on the jet, the horizontal force is also 0. (1 mark) This results in the horizontal component of the jet's velocity being constant. (1 mark)Tate's Tips- Don't forget that 0 force only means 0 acceleration. It DOES'NT mean that velocity is 0 too. However, if the object is at rest while no force acts then its velocity will be 0 but that is the only time 0 force= 0 velocity.
TC
Related Physics A Level answers
All answers ▸If two cars are moving, labelled car A and car B. Car A moves at 15 m/s and B at 10 m/s but car B also accelerated at 2 m/s/s. If the two both travel for ten seconds, which car will travel further?
If a wire loop moves at constant speed into a region where there is a magnetic field, why is a current induced in the wire?
How to solve horizontally-launched projectile motion problems using equations of motion?
A particle that moves uniformly in a circular path is accelerating yet moving at a constant speed. Explain this statement.