According to Newton's 3rd law of motion, every action has an equal and opposite reaction.
So Wall must apply a force of 50 Newton but in opposite direction.
Hope you got it :-D
Hey there!
When light changes speed, it REFRACTS.
Your answer is going to be option C.
Hope this helps you.
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Answer:
Yes. Inertia keeps the speed maintained though my feet leave the ground.
Explanation:
Inertia is the resistance to the change in position of any object this means this resistance will keep me traveling at 30 km/s relative to the sun. If the person wants to change the position we apply force to do that because inertia is opposing us to not do that. We are always traveling with 30km/s relative to sun due to inertia.
Answer:
70 revolutions
Explanation:
We can start by the time it takes for the driver to come from 22.8m/s to full rest:
The tire angular velocity before stopping is:
Also its angular decceleration:
Using the following equation motion we can findout the angle it makes during the deceleration:
where = 0 m/s is the final angular velocity of the car when it stops, = 114rad/s is the initial angular velocity of the car = 14.75 rad/s2 is the deceleration of the can, and is the angular distance traveled, which we care looking for:
or 440/2π = 70 revelutions
Anything times zero is zero