Answer:0.249 s
Explanation:
Given
Ball is tossed down with a velocity of 6.8 m/s downward
height from ground=2 m
therefore time to reach ground is
Answer:
60N
Explanation:
According to the principle of lever: a torque can control if an object will spin or not.
The torque Iskander cause is 40*1.2=48 N-m
So for balanced, Danny should cause the same torque.
48/0.8=60, Danny weigh 60N.
Normal force. Normal force is always present when there is contact between two items. Normal force is counteracting the gravitational force.
Explaining the incorrect answers:
-It’s not frictional force because friction only occurs when something is moving and also making contact. While there is contact in this scenario, the apple is not moving.
-There is no applied force; that would be something like a push.
-There is a gravitational force on the table, but it doesn’t keep the apple’s push in check. They are both pointed downwards, to the earth.
Hope this helps!