A ball is thrown vertically upward with a velocity of +10.0 m/s.
(a) How high does it rise?
___m
(b) How long does it take to reach its highest point?
___s
(c) How long does the ball take to hit the ground after it reaches its highest point?
___s
(d) What is its velocity when it returns to the level from which it started?
___m/s
2007-02-18 18:05:06 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
a) =h; b) =t; c) =l; d) =q;
Waiting for next question with burning impatience!
2007-02-18 23:23:37 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Conservation of momentum (linear:P and angular:L) P1 = 0.01 * 2 hundred = 2 kgm/s P1 = L2 + P2 assuming a hundred% inelastic collision and negilgable mass income. might desire to detect rotational inertia of ball in reaction to geometry assuming homogeneous density. i've got self belief it relatively is (2m/5)*R^2 discover on the spot L2 after effect. Calculate on the spot P2 after effect word acceleration imparted via floor friction untill angular speed fits translational speed for not extra slippage. notice: there will be a specfic effect height the place the angular speed will thoroughly negate the translational speed after frictional acceleration is finished and the ball would be left at relax. in line with danger it relatively is R/2???
2016-10-02 09:13:38 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Get off here and do your own homework.
2007-02-18 18:12:44 · answer #3 · answered by Gene 7 · 1⤊ 0⤋