Recent content by domagoj412

Yes, I got the different result: 16.34 m for uphill and 50.31 m for downhill.

Homework Statement Car is driving up the hill with speed of 60 km/h. Angle of incline is 17°. Seeing barrier on the road, the driver suddenly stops (breaks the wheels) and starts to slide. If koef. of fiction is \mu=0.6 what is the distance between breaking point and the point when cars stops...

Homework Statement Ball starts to slide with initial speed v0 = 6.5 m/s on horizontal surface. After what time will ball start to roll? Kinetic friction between the ball and the surface is 0.3. v0 = 6.5 m/s \mu = 0.3 I = 1/2 mr^2 Homework Equations I have solved this problem but I'm not...

But something has to be wrong :mad:

One more problem to solve... A soldier on skis fires a bullet from rifle horizontally. After what distance will soldier stop moving if coefficient of friction between surface of skis and snow is 0,01. Mass of bullet is 0,01 kg, initial speed of fired bullet is 900 m/s and mass of soldier, rifle...

No, I made a mistake, it is 3,43. Thank you.

When you solve this Kinetic energy = frictional force * x Ek=F*x You get 1,71 m/s So which is correct? 1,71 or 3,43 m/s?

I looked up for the right term, yes I thought on Coefficient of friction which is 0,3. But i need solve this with energy conversation...

Hello, I have one problem... In what initial speed must barmen throw beer mug on the table so it can travel 2 meters. Mass of the beer mug is 0,3 kg. Sliding loss factor between table and beer mug is 0,3. I hope you have understand the question, because I am translating it from my mother...