A 400. kg roller coaster car is traveling at a constant speed of 12 m/s through a dip with a radius of curvature of 40m. What is the normal force acting on the car at the bottom of the dip?

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

It is may 5 and you are somewhere in the northern hemisphere. if you determine that the noon sun is 51 degrees above your southern horizon, what is the latitude of your location