1. a 59 kg person is in a vehicle travelling at 41 m/s. the vehicle runs into a telephone pole. at impact, it
takes the vehicle 192 milliseconds to come to a stop.
a. what is the average force exerted on the person?
b. some people think they can stop their bodies from lurching forward in a vehicle by putting their
hands on the dashboard. find the mass of an object that has a weight equal to the force you just
calculated. could you lift such a mass? are you strong enough to stop your body with your arms?

If steel is more dense that lake water, why can a boat float

Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?

Asatellite that goes around the earth once every 24 hours iscalled a geosynchronous satellite. if a geosynchronoussatellite is in an equatorial orbit, its position appearsstationary with respect to a ground station, and it is known as ageostationary satellite find the radius rof the orbit of a geosynchronous satellite that circles the earth.(note that ris measured from the center of the earth, not the surface.) you mayuse the following constants: the universal gravitational constant g is 6.67 \times 10^{-11}\; {\rm n \; m^2 / kg^2}. the mass of the earth is 5.98 \times 10^{24}\; {\rm kg}. the radius of the earth is 6.38 \times 10^{6}\; {\rm m}.