Physics 107 homework assignment #7 Cutnell & Johnson, 7th



Download 0.65 Mb.
Page8/9
Date28.05.2018
Size0.65 Mb.
#52216
1   2   3   4   5   6   7   8   9

The minus sign in vf1 indicates that the first ball reverses its direction as a result of the collision.


c. If we apply the conservation of mechanical energy to either ball after the collision we
have


where v0 is the speed of the ball just after the collision, and hf is the final height to which the ball rises. For either ball, h0 = 0 m, and when either ball has reached its maximum height, vf = 0 m/s. Therefore, the expression of energy conservation reduces to

Thus, the heights to which each ball rises after the collision are




Download 0.65 Mb.

Share with your friends:
1   2   3   4   5   6   7   8   9



The database is protected by copyright ©ininet.org 2024
send message
    Main page
united states
total number
vast majority
federal government
other side
next generation
supreme court
information contained
current state
executive director
national association
middle east
east coast
general assembly
private sector
west coast
same time
united kingdom
total amount
united nations
full range
highest level
soviet union
european union
national academy