The sider block moves with a velocity of r., 1.5 m/s and an acceleratim of α. 0.9 m/s 13 m/s. determine the npvlar sceternien of rod at and the acceterasion of a at the instant shown -15 ms 与“09 m/? at a gives instant, the gear has the srgalar mocon shows, duteheactions of points a and 8 on the link and the inksargular accelerarion at this itant

In the sport of parasailing, a person is attached to a rope being pulled by a boat while hanging from a parachute-like sail. a rider is towed at a constant speed by a rope that is at an angle of 15 ∘ from horizontal. the tension in the rope is 1900 n. the force of the sail on the rider is 30∘ from horizontal. what is the weight of the rider? express your answer with the appropriate units.

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.