A particle is constrained to move in #Q_1#, in a parabolic groove # y = x^2#. It was at O, at t = 0 s. At time t s, its speeds in the directions Ox and Oy are 5 and 12 cm/s, respectively. How do you prove its direction makes #67^o22'49''# with Ox?
1 Answer
Feb 18, 2017
See below.
Explanation:
Because of the constraint, the velocity vector is also the tangent vector. Therefore:
