Posted by
**Rahat** on
.

A rocket is being tracked from a radar post that is 10 km from the launch pad.the rocket arises vertically at a height of 17.32 km and then turns at an angle of 30 degrees fron the vertical directly away from the radar post .it then travels at the constant speed of 12000 km/h along a straight path for 2 min. How fast is it recedding from the radar post ?