Recent content by maki

i just base the coordinate system off rest-state. at rest, the gravity effect/constant is 9.8, if you then fall with accel 3 m/s^2 that's down from where you were at rest so a=-3 (which makes you lighter in reference to the scale)

works so much better that way, ty ;p

Fscale = m ( a + g ) Fscale = 75 ( -3 + 9.8) Fscale = 75 ( 6.8 ) Fscale = 510 Newtons 510 / 9.8 = 52.04 kg where do you get a negative...

edited my post for that ;D

(d) accelerating upward at 3.0m/s^2, and (e) falling downward at 3.0m/s^2? mezarashi said: Fscale = ma + mg I like to factor out the "m" to make it easier. Fscale = m(a + g) Fscale = 75kg(a + 9.8) No need for 2 questions, for part (e) when you are falling the acceleration would be...

A 50kg sprinter, starting from rest, runs 50m in 7.0s at constant acceleration. a) What is the magnitude of the horizontal force acting on the sprinter? b) What is the sprinter's power output at 2.0s, 4.0s, and 6.0s? I think maybe the 'magnitude' part is confusing me. F = ma V(avg) =...

A massless pan hangs from a spring that is suspended from the ceiling. When empty, the pan is 50cm below the ceiling. If a 100g clay ball is placed gently on the pan, the pan hangs 60cm below the ceiling. Suppose the clay ball is dropped from the ceiling onto an empty pan. What is the pan's...