Friday

March 27, 2015

March 27, 2015

Posted by **Becky** on Monday, March 21, 2011 at 10:31pm.

(a) Calculate the athlete's velocity just before reaching the pad.

______ m/s downward

(b) Calculate the constant force exerted on the pole-vaulter due to the collision.

_________N upward

- Physics -
**Damon**, Monday, March 21, 2011 at 10:36pm(1/2) m v^2 = m g h

so

v = sqrt (2 g h)

Force = rate of change of momentum (m a in the limit as t-->0 and with constant m)

F = change in momentum/change in time

= m v /t

**Answer this Question**

**Related Questions**

Physics - A 59 kg pole-vaulter falls from rest from a height of 5.5 m onto a ...

Physics - A 55 kg pole vaulter falls from rest from a height of 5m onto a foam ...

physics - A 85 kg pole-vaulter falls from rest from a height of 6.4 m onto a ...

physics - please help i cannot figure this out A 0.27 kg ball of dough is thrown...

Physical science - A 50 kg pole vaulter falls from rest from a height of 5 ...

physics please help me - The pole vault landing pad at an Olympic competition ...

physics help - The pole vault landing pad at an Olympic competition contains ...

please help dont know how to solve - The pole vault landing pad at an Olympic ...

physics - The pole vault landing pad at an Olympic competition contains what is ...

physics - A surprising demonstration involves dropping egg from a third-floor ...