# Physics University

If a completely cylindrical bar with a mass of 5000kg is flung into a wall with a surface area of 500un^2 and is morphed into a square at 50NMC/m at 40 degrees tangent to the area of initial impact. What is the length of the sides?

1. 👍 0
2. 👎 0
3. 👁 144
1. Third year?
Try drawing all the vectors and their rates for EACH stage and see if that helps.
24.2m
If you still can't get it don't be afraid to ask for an explanation.

1. 👍 0
2. 👎 0
2. I get:
VecA=40m/s
VecB=62.2m/s
VecC=33.4m/s
VecD=199.3m/s
all at E of S of the radius

Then
VecE=27.8m/s at N of W
And
VecF=101.1m/s in a linear spiral

Final= 1.87m
Which of my vectors are wrong?

1. 👍 0
2. 👎 0
posted by Lexi
3. Your F stage vector should be 784.3m/s in a spiral is correct.

My guess is you didn't take [4(pi)SA^3] when finding F (:

1. 👍 0
2. 👎 0
4. Thank you so much!!! This problem gave me a headache!

1. 👍 0
2. 👎 0
posted by Lexi

## Similar Questions

1. ### PHYSICS

There's a bar with length of 6.49m and mass of 5.45kg leaning against a frictionless wall. It makes an angle of 66.08 deg with the ground. A block with mass of 44.98 kg hangs from bar at distance d up from point of contact between

asked by Alie on October 24, 2007
2. ### Physics

A solid bar of length L = 1.32 m has a mass m1 = 0.751 kg. The bar is fastened by a pivot at one end to a wall which is at an angle θ = 35.0 ° with respect to the horizontal. (in other words, the angle between the wall and the

asked by Misaki on October 19, 2014
3. ### Physics

A 50kg sign for a local business is hung from a bar which meets a wall at right angles as shown in figure 1. The bar is 1.5 meters long, and it's mass may be neglected. The center of mass of th sign is 1.0 meters from the wall

asked by David on June 24, 2015
4. ### Physics

"Two masses, 2000kg and 5000kg, are placed 20m apart. A third mass of 5000kg is placed in between the two large masses a distance of 5.0m from the larger mass. What is the force acting on the 500kg mass?"

asked by Stuck on July 17, 2010
5. ### physics

A uniform bar of length 12 m and mass 3 kg is attached to a wall with a hinge that exerts a horizontal force Hx and a vertiscal force Hy on the bar. The bar is held by a cord that makes a 90 degree angle with respect to bar and 43

asked by Ashley on January 5, 2010
6. ### Physiscs

A 3kg bar is laying on a smooth vertical wall of 3L of height and a floor of 2L. Determine the force that the wall exerts over the bar. I have tried to get to length of the bar by using Pitagoras but no, then I tried using a free

asked by Angela on November 23, 2016
7. ### Physics

A solid bar of length L = 1.30 m has a mass m1 = 0.893 kg. The bar is fastened by a pivot at one end to a wall which is at an angle è = 33.0 ° with respect to the horizontal. The bar is held horizontal by a vertical cord that is

asked by Tessa on April 26, 2010
8. ### physics

a 10.0m long bar is attached by a frictionless hing to a wall and held horizontally by a rope that makes an angle of 53 deg with the bar the bar is uniform and weights 39.9 N. how far from the hinge should a 10.0kg mass be

asked by Mike on November 3, 2014
9. ### Physics - Tension Question

A uniform bar of mass 12 kg and length 1.4 m is held by a hinge on a vertical wall. A string is attached to the end so that the bar is in mechanical equilibrium. The angle between the bar and the string is 25o. Find the tension in

asked by Anon on November 11, 2016
10. ### math

A metal solid made up of a cylindrical bar fixed onto a cube. The cylindrical bar fixed onto a cube. The cylindrical bar is 20 cm long and has a diameter of 7 cm. Each side of the cube is 9 cm long. The surface of the solid was

asked by king on January 9, 2015

More Similar Questions