It takes 15 minutes to walk to the mall from your house at an average velocity of 1.1 m/s to the east. what is the displacement from your house to the mall?

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?