ok new issue with this question my time comes out to be 2.556 seconds, it seems that the man is throwing it so it moves parabolically, some of my friends have different answers so if u could help that'd be great
I know I have the units and thanks for spotting the stupid 5.6 mistake. I'll get back to you tonight to tel if I got it.
By the way mass of planet is gotten from Fg=GMm/r^2
Where in this caser I will know Gmr and Fg
Fg=N
f=mu*N
N=f/mu
here is 73/0.70
=104.286
and in the end M should come out...
A colonist on a distant planet with a radius 0.92 times the Earth's is pulling on a box of mass 12 kg across the floor. The coefficient of static friction between the box and the floor is 0.70. He has to pull with a force of greater than 73N to start the box moving.
a) Determine the mass of the...
ok so 360N applied on small.
only 30N needed to push box at 3m/s/s so N=360N-330N=30N.
So 330 applied on big.
240 friction against it.
and obviously gravity and normal force on each.
So 30N used on 1st box 90N used on 2nd box and 240N to overcome friction.
This should be right.
If a body crashes into a water surface at high speed, the impact is almost as hard as on a solid surface. Explain why.
I think it is something like this:
The water cannot displace fast enough and so all the molecules are close together as if they were a solid.
Also:
The Earth rotates at...
So that makes some sense to me, but what would your answer be to that question? The exact wording is:
Two boxes of masses 10kg and 30kg are moving along a surface next to each other. There os a force of friction (magnitude 240 N) between the surface and the box of mass 30kg, but no friction...
Is there or what is the normal force on an object being pushed into another object?
Example:I push a 10kg box into a 30kg box with a force of 360N and only the second box receives a friction of 240N (the first one receives no friction), what will the acceleration of each of the individual boxes...