An old building is being demolished by swinging a heavy metal ball from a crane. Suppose that such a 115kg ball swings from a 20
-m-long wire at speed 12m/s as the wire passes the vertical orientation.
a) What tension force must the wire be able to withstand in order not to break?
b)Assume the ball stops after sinking 1.5 m into the wall. What was the average force that the ball exerted on the wall?
a) What tension force must the wire be able to withstand in order not to break?
b)Assume the ball stops after sinking 1.5 m into the wall. What was the average force that the ball exerted on the wall?
1 answer:
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