Question

Answer in short for the following questions. (Each carries 2 marks)
(06)
6. A jet airplane travelling at the speed of 400 km h ejects its products of combustion at the speed of
1200 km h' relative to the jet plane. What is the speed of the latter with respect to an observer on the
ground?
7. "Explain Triangle method of vector addition,
OR
Rain is falling vertically with a speed of 30 ms-4. A woman rides a bicycle with a speed of 10 ms-t in the
north to south direction. What is the direction in which she should hold her umbrella ?
8. Determine the maximum acceleration of the train in which a box lying on its floor will remain stationary,
given that the co-efficient of static friction between the box and the train's floor is 0.15.​

Answer 1

Bro plz ask another question as it is bauth hard
I think it would help me