Iso 7. Joe Citizen is cruising in his car toward a green light at 72 kilometers/hour. At
34 meters from the intersection he jams on his brakes. (There is an obstruction in
the intersection. Why, it's.. it..the BATMOBILE, stopped to help some poor
pedestrian in trouble!) If Joe. can decelerate at 6 m/sec?, how long will take him
to stop? How far does he travel in this time? Is there a crash with the
BATMOBILE?

If a sphere and a cure have the same mass and are propelled up a ramp with the same force, which would travel father up the ramp? explain.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

You are your friend move a new refrigerator into his kitchen. you apply a horizontal force of 252 n in the negative x direction to try and move the 56 kg refrigerator. the coefficient of static friction is 0.61. (a) how much static frictional force does the floor exert on the refrigerator? give both magnitude (in n) and direction. magnitude n direction (b) what maximum force (in n) do you need to apply before the refrigerator starts to move?