a small 100g cart is movine at 1.20 m/s on an air track when it collides with a larger, 1.00 kg cart at rest. After the collision, the small cart recoils at 0.850 m/s. what is the speed of the large cart after the collision?
+808 If you haven't already I'd highly recommend making a drawing.
i = initial
f = final
m(small cart) = 100 g = 0.1 Kg
vi(small cart) = 1.20 m/s
vf(small cart) = - 0.850 m/s
m(large cart) = 1.00 Kg
vi(large cart) = 0 m/s
vf(large cart) = ?
pi(small cart) = mv = 0.120 Kgm/s
pi(large cart) = mv = 0 Kgm/s
pi(large cart + small cart) = 0.12 Kgm/s = pf(large cart + small cart)
pf(small cart) = mv = - 0.0850 Kgm/s
pf(large cart) = pf(large cart + small cart) - pf(small cart) = 0.12 Kgm/s - (- 0.0850 Kgm/s) = 0.205 Kgm/s
vf(large cart) = pf(large cart)/m(large cart) = 0.205 m/s
+808 If you haven't already I'd highly recommend making a drawing.
i = initial
f = final
m(small cart) = 100 g = 0.1 Kg
vi(small cart) = 1.20 m/s
vf(small cart) = - 0.850 m/s
m(large cart) = 1.00 Kg
vi(large cart) = 0 m/s
vf(large cart) = ?
pi(small cart) = mv = 0.120 Kgm/s
pi(large cart) = mv = 0 Kgm/s
pi(large cart + small cart) = 0.12 Kgm/s = pf(large cart + small cart)
pf(small cart) = mv = - 0.0850 Kgm/s
pf(large cart) = pf(large cart + small cart) - pf(small cart) = 0.12 Kgm/s - (- 0.0850 Kgm/s) = 0.205 Kgm/s
vf(large cart) = pf(large cart)/m(large cart) = 0.205 m/s
