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dopi

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  1. iv tried that...however i cant seem to get the correct answer...i get v=u(e+1)m using the COR formula and momentum formula...cant seem to link the kenetic energy formula and get the (root3)/ 4 part...is there any one who can show me part (a) please
  2. Does anyone know how to solve this please, don't even know were to begin with this problem. A spacecraft and its cargo (a satellite) is circling the Earth at a constant speed and an altitude of 600km. Their combined mass is 1.20x10^5kg. At thi = 0, the captain ejects the 1.10 x 10^4kg satellite out the back. The speed of the satellite relative to the spacecraft at the time of the separation is 100m/s When the spacecraft reaches thi = pi, what will its altitude above the Earth be? Thanks
  3. Thankz, but iv been stuck on part (b) of the question for a while now, i was wondering if anyone knows how to solve it A red snooker ball of mass m and radius a is at rest on the snooker table. The white ball's centre is travelling along a line that is tangent to the red ball. The white ball also has a mass m and radius a. The coeffcient of restitution for collisions between the two balls is e. (a) Show that the speed of the red ball after collision is (square-root 3)/4 * (1 + e) times the speed of the white ball before the collision. (b) Find the angle that the white ball's path is deflected by.
  4. A red snooker ball of mass m and radius a is at rest on the snooker table. The white ball's centre is travelling along a line that is tangent to the red ball. The white ball also has a mass m and radius a. The coeffcient of restitution for collisions between the two balls is e. (a) Show that the speed of the red ball after collision is (square-root 3)/4 * (1 + e) times the speed of the white ball before the collision. (b) Find the angle that the white ball's path is deflected by. © Show that no energy is lost in the collision if e = 1. Does anyone have any hints on how to solve this or know how to solve this thankz
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