physics
posted by justin .
At a carnival, you can try to ring a bell by striking a target with a 11.6kg hammer. In response, a 0.413kg metal piece is sent upward toward the bell, which is 4.22 m above. Suppose that 26.2 percent of the hammer's kinetic energy is used to do the work of sending the metal piece upward. How fast must the hammer be moving when it strikes the target so that the bell just barely rings?

0.262KE=PE
0.262m₁v²/2 = m₂gh
v=sqrt{2m₂gh/0.262m)=
=sqrt{2•0.413•9.8•4.22/0.262•11.6} =
=3.35 m/s
Respond to this Question
Similar Questions

math
a bell rings er=very 2hours,a srcond bell rings every 3 hours,and a third bell ring every 4 hours.if all bells ring at 9:00a.m.,whst time will the next 3 bells ring? 
Nautical Studies
IRPCS  Vessel over 100m aground in fog  sound signals. IRPCS does not make it clear, it seems open to interpretation. 3 strokes of bell/bell 5s/gong 5s/3 strokes of bell OR 3 strokes of bell/bell 5s/3 strokes of bell/gong 5s ? 
geography
I couldn't find where bell lived and worked when i googled bell. Alexander Graham Bell:? 
physics
There is a bar magnent falling through a metal ring. The first metal ring is solid all the way around but in the second metal ring it has been cut through. Why is the motion in the magnent with the solid metal ring retarded when the … 
Physics  Fluids
A cylindrical diving bell 3.0 m in diameter and 4 m tall with an open top of 25 degrees celsius, and the air temp 220 down is 5 degrees celsius. The density of seawater is 1025 kg/m^3. How high does the sea water rise in the bell when … 
physics
Using the circuit for an electric bell, a) Explain why the bell won't work if the elctromagnet is replaced with a permanent magnet. (2 marks) b)Explain why the core of the electromagnet used in an electric bell must not be made from … 
math
A bell rings every 2 hours, a second bell rings every 3 hours, and a third bell rings every 4 hours. If all 3 bells ring at 9:00 AM. , at what time will all 3 bells next ring? 
math
A bell rings every 2 hours, a second bell rings every 3 hours, and a third bell rings every 4 hours. If all 3 bells ring at 9:00 AM. , at what time will all 3 bells next ring? 
Physics
At a carnival, you can try to ring a bell by striking a target with a 8.46kg hammer. In response, a 0.411kg metal piece is sent upward toward the bell, which is 5.22 m above. Suppose that 34.4 percent of the hammer's kinetic energy … 
physics
At a carnival, you can try to ring a bell by striking a target with a 8.46kg hammer. In response, a 0.411kg metal piece is sent upward toward the bell, which is 5.22 m above. Suppose that 34.4 percent of the hammer's kinetic energy …