Recent content by copypacer

Homework Statement If I have shot an arrow, would that arrow speed slow down due to air resistance? If so, would that mean that the the acceleration would be de-accelerating? Homework Equations f = ma The Attempt at a Solution This isn't a a homework problem, this is just something I was...

I know, weight has to do with gravity, BUT, we still call it mass because we need the measurement of matter in the object and than calculate the gravity in order to find the force.Also, if I wanted to find what my mass is, do I just divide my weight by 9.8?

When you said "weight" do you mean mass?...but then again this is in respect to gravity right? confused

Right, but I thought the time it would get there would be different because the hammer would have a greater force because of its greater mass. My guess is that because the hammer has a greater mass, that mass compensates for the greater force and essentially, the ratio of Force to mass is the...

a feather and a hammer or anything heavier will have a different mass compared to the feather. Acceleration is 9.8 but the forces will be different because of different masses, basically i still don't see how they will end up on the ground at the same time due to different forces and different...

<<Mentor note: Edited for language>> 1. Homework Statement If I have a feather and a hammer and drop it at the same time from the same height (with out air resistance, so basically in a vacuum) Why would it land on the ground at the exact same time? Homework Equations F = ma The Attempt at...

No D:I tried the formula but couldn't find acceleration

Homework Statement In April 1974, John Massis of Belgium managed to move two passenger railroad cars. He did so by clamping his teeth down on a bit that was attached to the cars with a rope and then leaning backward while pressing his feet against the railway ties. The cars together weighed 700...

...no...wait...no I don't

I'm trying to find the second force, so how would I solve that?

Wait I'm confused D: Both the acceleration and force 2 are in the third quadrant, so its negative, wouldn't I still use F2 = ma - F1 so what do I do, since the two forces are not in the same direction? I don't get it DX

here it is, sorry

Homework Statement There are two forces on the 2.43 kg box in the overhead view of the figure but only one is shown. For F1 = 20.0 N, a = 11.4 m/s2, and θ = 33.0°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative...

Homework Statement If a 1.00 kg body has an acceleration of 9.01 m/s2 at 39° to the positive direction of the x axis, then what are (a) the x component and (b) the y component of the net force on it, and (c) what is the net force in unit-vector notation? Homework Equations F=ma? The Attempt...