A bowling ball of mass 5 kg rolls down a slick ramp 20 meters long at a 30 degree angle to the horizontal. What is the work done by gravity during the roll, in Joules

The work done by gravity during the roll is 490.6 J

Explanation:

The work (W) is:

Where:

F: is the force

d: is the displacement = 20 m

The force is equal to the weight (W) in the x component:

Where:

m: is the mass of the bowling ball = 5 kg

g: is the gravity = 9.81 m/s²    

θ: is the degree angle to the horizontal = 30°        

Now, we can find the work:

Therefore, the work done by gravity during the roll is 490.6 J.

I hope it helps you!

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

explanation:

wheres the pic