Question

A point object P of mass m is sliding along a frictionless wall...

I want an intensive explanation for this problem.

3 A point object P of mass m is sliding along a fric- tionless wall of a radius of curvature, Ro, in a verti- cal plane as shown in Fig. 2. Assume that the point object is initially at rest at the point A and starts to move toward the bottom B. The angle between the normal (to the wall) at A and the vertical line is 8o radians, and assumed to be small. Fig. 2 (1) The elevation h between the points A and B is approximately (a) Robo (b) Ro0o2 (c Ro80 (d) Ro0o (2) The speed of the point object at B, Vax, is given by (b) 2gh (c) 2/gh where g is an acceleration constant due to gravity. (3) The arc length AB is given by (a) Robo (b) Robo (c) 2Ro0o (d) Ro0 (4) The time f which is defined as -AB/Vmix is given by (d) 2/ Rolg (5) The ratio of the actual time t reaching B from A to t,t/f, satisfies (b t/T-2 (e) t/t<1 (a) t/t> 2 (d) t/T-1

Answer 1

Ro Ro Coso Ro-cos0) ncr Conservohon 1 fre leng this given by Roo。 (b) 1B ( 6J (5)t8 AB So So ta 2t -2 (b)