The motion of a 1 lb block B in a horizontal plane is defined by the relations r 6 (1 cos 2t) and 2t , where r is expressed in feet, t in seconds, and in radians Determine the radial and transverse components of the force exerted on the block when (a) t 0, (b) t 0 75 s 00 0 B A...

of acceleration 0 27t rad 8 27 rads 247 cos 2t fts 0 a r 247 cos 2t 6 6 cos 2t27 247487 cos ...

The motion of a 1-lb block B in a horizontal plane is defined by the relations r

Question:

The motion of a 1-lb block B in a horizontal plane is defined by the relations r = 6 (1 + cos 2πt) and θ = 2πt , where r is expressed in feet, t in seconds, and θ in radians. Determine the radial and transverse components of the force exerted on the block when

(a) t = 0,

(b) t = 0.75 s.