ap physics question

4. Bloods accelerated from rest at 10.0cm/s in a distance of 2.0cm by the left ventricle of the heart. (1) Make a sketch of the situation, 0.0) T ( 5 ) O. (2) How long does the acceleration take? - 0 02 . 0.2 m/6 5 A roller coaster passes point A with a speed of 20 m/s. Assuming no friction on the track, (1) find the speed of the roller coaster at points B and C. (2) If there is friction and the average friction equals to 30m one-sixth of it's weight, with what speed will it reach point 10m B? The distance traveled between A and B is 60 m. .) E - Ex t Ep = =must mah= constant speed of the roller coaster at points B and C is same as bo : ( 2) - $ 6 = ( mob + + my ? ) - ( man. + Imv. ) 10 A=B = C