A person rides a Ferris wheel that turns with constant angular velocity. Her weight is 526.0 N. At the top of the ride her apparent weight is 1.500 N different from her true weight. A) What is her apparent weight at the top of the ride? in N B) What is her apparent weight at the bottom of the ride? in N C) If the angular speed of the Ferris wheel is 0.0250 rad/s, what is its radius? in m

The propeller of a world war ll fighter plane is 2.4 m in diameter. a) what is its angular velocity in radians per second if it spins at 1300 rev/min? W=     rad/sb)what is the linear speed of its tip at this angular velocity of the plane is stationary on the tarmac? V=      m/sc)what is the centripetal acceleration of the propeller tip under these conditions? Calculate it in meters per second squared  ac =    m/s^2 compare centripetal acceleration to the acceleration due to gravity g. Is the centripetal acceleration large or very small compared to g?  ac/g=  d) state what force provided this centripetal acceleration  -the gravitational force  -the rotary motor of the plane attached to the propeller  -the Coriolis force  -the force of kinetic friction

A 50.0-kg child stands at the rim of a merry-go-round of radius 2.95 m, rotating with an angular speed of 3.85 rad/s. (a) What is the child's centripetal acceleration? ___________m/s2(b) What is the minimum force between her feet and the floor of the carousel that is required to keep her in the circular path? ___________N(c) What minimum coefficient of static friction is required?Is the answer you found reasonable? In other words, is she likely to stay on the merry-go-round? _____Yes _____No

A car is slowing down in a straight road.What direction does its angular velocity point? And what direction does its angular acceleration point?Explanation. A plumb bob is generally to hang vertically downwards – ie, towards the center of the Earth.(it maybe not always true) By drawing a free-body diagram and considering the centripetal acceleration of a plumb-bob (at 45o N latitude), explain why.  indicate the direction (north, south, east, or west) that the plumb bob will hang. Two particles execute simple harmonic motion with the same amplitude. One particle has twice the frequency of the other. Compare their maximum velocities and accelerations.