Physics question? Please.?

J

Janine

New member
The smallest bird is the Cuban bee hummingbird, which has a mass of only 1.7 g. If this bird did 8.8 x 10-4 J of work by exerting an upward force of 3.4 x 10-4 N, how far did it fly?

One more.

At the 1996 Summer Olympics, in Atlanta, Georgia, a mass of 260.0 kg was lifted for the first time ever in a clean-and-jerk lift. The lift, performed by Russian weightlifter Andrei Chemerkin, earned him the un-official title as "the world's strongest man." If Chemerkin did 6222 J of work in exerting a force of 2595 N, how high did he lift the mass?

Thanks to whoever answers! :)
 
Hi,
1.) Use Physic Formula :
Work = Force • distance
distance = Work / Force
distance = 8.8 • 10^-4 J / 3.4 • 10^-4 N
distance = 2.59 meter
so far = 2.59 meter

2.) high = Work / Force
high = 6222 J / 2595 N
high = 2.39 meter

so high = 2.39 meter

Hope this helped :)
 
Back
Top