4. On a flat, level road, a 1,200-kilogram car travels around a curve having a constant radius of 45 meters. The centripetal acceleration of the car has a
constant magnitude of 1.8 m/s.
Which type of force provides the centripetal force needed for the car to travel
around the curve?

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

=force × distance a. work b. velocity c. pressure d. momentum