1-7. The ramp is 1 m from the
ground, and a marble ball slides off the ramp with a normally distributed
horizontal velocity 
. Find the probability that the range 
, where the marble hits the ground, is smaller than 2 m?
Solution:
1-7. The ramp is 1 m from the
ground, and a marble ball slides off the ramp with a normally distributed
horizontal velocity . Find the probability that the range , where the marble hits the ground, is smaller than 2 m?
Solution: