- #1
Ukitake Jyuushirou
- 124
- 0
Alice, Bob and Daniel are standing on the edge of a canyon which is 100m deep and 20m wide. On the opposite side of the canyon there is a 10m high cave, 15m below the top of the cliff. They each throw a rock horizontally with the following initial speed to see who can get it into the cave.
Alice rock speed 5m/s
Bob rock speed 10m/s
Daniel rock speed 20m/s
for this qn, i do not understand why initial velocity is 0...hmmm ? becoz only with the initial speed as 0 can i work out the correct ans...if i were to use the values given, i will get a wrong ans...
Alice rock speed 5m/s
Bob rock speed 10m/s
Daniel rock speed 20m/s
for this qn, i do not understand why initial velocity is 0...hmmm ? becoz only with the initial speed as 0 can i work out the correct ans...if i were to use the values given, i will get a wrong ans...