PLEASE HELP I NEED THE ANSWERS FOR ALL OF THEM!!!
1. A pile of boxes exerts a force of 500 newtons downward on the floor. The
boxes are not in motion. What is the normal force on these boxes?
2. Norman drags a stubborn dog by his leash with a force of 200 newtons.
The dog is slowly moving towards Norman. What do you know about the
force exerted by the dog?
3. A baby grand piano sits in a music room. The piano exerts a force of
3500 newtons downward. Isaac tells his friends that he is strong enough to
lift the piano off the floor. How much force will he have to use to lift the
piano?
4. Mrs. Lucero is dragging a box of assessments across the floor using a
force of 70 newtons. The frictional force acting against the box is 50
newtons. What is the net force on the box?
5. A bicycle is sitting motionless in the driveway. What is the net force
acting on this bike?
6. Maria drops a box that exerts of force of 300 newtons downward on a
table. The normal force acting on the box from the table is 250 newtons.
What will happen to the table and the box? What is the net force of the
box?
7. Anna is riding her bike, moving at a constant velocity of 3 miles per hour
to the south. She is using 200 N of force to pedal her bike. A gust of wind
blowing in the same direction she is traveling suddenly exerts a force of 20
Newtons on her. What will happen to her motion? (hint: Use the term
accelerate OR decelerate in your answer.)
8. Mrs. Fedde is riding her bike, moving at a constant velocity of 5 miles per
hour to the north. She is using 300 N of force to pedal her bike. A gust of
wind blowing in the opposite direction she is traveling suddenly exerts a force of 50 Newtons on her. What will happen to her motion?