shantu1992
Member
- Joined
- Apr 23, 2008
- Messages
- 154
- Gender
- Male
- HSC
- 2009
A ball of mass 0.5 ks rolls offf a horiztonal ledge 4.0 m above the ground with a speed of 4 ms-1
a) how long does it take the ball to reach the ground below the lodge?
b) how far, horiztonally, from the ledge will the ball strike teh ground?
c) what is the horiztontal component of the balls velocity when it strikes the ground?
d) what is the vertical component of the balls velocity when it strikes the ground?
e) what is the kinetic energy of the ball just before it strikes the ground?
f) what is the speed of teh ball before it strikes the ground?
please help aswer these
a) how long does it take the ball to reach the ground below the lodge?
b) how far, horiztonally, from the ledge will the ball strike teh ground?
c) what is the horiztontal component of the balls velocity when it strikes the ground?
d) what is the vertical component of the balls velocity when it strikes the ground?
e) what is the kinetic energy of the ball just before it strikes the ground?
f) what is the speed of teh ball before it strikes the ground?
please help aswer these