# physics

posted by .

A package slides down a 135 m long ramp with no friction. If the package starts from rest at the top and is to have a speed no faster than 19m/s at the bottom, what should be the maximum angle of inclination?

• physics -

(1/2) M Vmax^2 = M*g*135 sinA

M cancels out.

sinA = (1/2)Vmax^2/(g*135)
= 0.1364
A = 7.84 degrees

## Similar Questions

1. ### physics

Two packages at UPS start sliding down the 20° ramp shown in Figure P8.25. Package A has a mass of 3.5 kg and a ­coefficient of friction of 0.20. Package B has a mass of 10 kg and a coefficient of friction of 0.15. How long does …
2. ### physics

A 5.30 kg package slides 1.57 m down a long ramp that is inclined at 11.8^\circ below the horizontal. The coefficient of kinetic friction between the package and the ramp is mu_k = 0.320 Calculate the work done on the package by the …
3. ### Physics

A 145 m long ramp is to be built for a ski jump. If a skier starting from rest at the top is to have a speed no faster than 22 m/s at the bottom, what should be the maximum angle of inclination?
4. ### physics

two packages at ups start sliding down the 20 degrees ramp. package a has a mass of 4.5kg and a coefficient of friction of 0.2. package b has a mass of 8.5 kg and its coefficient of friction is 0.13. how long does it take package A …
5. ### College Physic

can someone help me with this question? Thank you! You have taken a summer job at a warehouse and have designed a method to help get heavy packages up a 15º ramp. In your system a package is attached to a rope, which runs parallel
6. ### physics

A 5.20 package slides 1.57 down a long ramp that is inclined at 13.0 below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.305 Calculate the work done on the package by friction. Calculate …
7. ### physics

A 5.20 package slides 1.57 down a long ramp that is inclined at 13.0 below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.305 Calculate the work done on the package by friction. Calculate …
8. ### Physics

A 6.7 kg package starts from rest and slides down a mail chute that is 50 m long and has a vertical drop of 10m. If the velocity of the package at the bottom of the chute is 4m/s what is the average frictional force on the package …
9. ### physics

A 5.40 Kg package slides 1.47 meters down a long ramp that is inclined at 11.6 degress below the horizontal. The coefficient of kinetic friction between the package and the ramp is = 0.313. Calculate the work done on the package by …
10. ### Physics

A package is thrown down a curved ramp as shown in the figure. The package moves from A to B through a quarter-circle with radius R=3.00m. The mass of the package is 25.0kg. The package starts from rest at point A and there is no friction. …

More Similar Questions