#$&* course phy 201 9/23 10:30 pm A ball starting from rest rolls 11 cm down an incline on which its acceleration is 24 cm/s2, then onto a second incline 44 cm long on which its acceleration is 12 cm/s2. How much time does it spend on each incline? Distance on first incline: 11 cm; acceleration on first incline: 24 cm/s^2; initial velocity: 0; vF^2 = v0^2 + 2*a*ds; 0 + (48 * 11); 528 = vF^2; vF for first ramp = roughly 23 cm/s; average velocity: roughly 11.5 cm/s Time spent on first ramp: 0.957 seconds; Distance on second incline: 44 cm; initial velocity: roughly 23 cm/s. Final velocity: sqrt(1585) or roughly 39.8; Average velocity: 31.4; Time spent on second ramp: 1.11 seconds.