Recent content by am08

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    Linear Conservation of Momentum

    A 18-kg shell is fired from a gun with a muzzle velocity 185 m/s at 33o above the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. What is the horizontal speed of...
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    Bullet Velocity: Calculate Speed of Bullet Before Hitting Wood

    So i used v2 = squareroot (2gy) and found the final velocity to be 5 m/s then i used v1 = (mass bullet + mass block / mass bullet) * v2 is this right? I'm using conservation of momentum..
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    Bullet Velocity: Calculate Speed of Bullet Before Hitting Wood

    A bullet of mass m= 3.10×10-2kg is fired along an incline and imbeds itself quickly into a block of wood of mass M= 1.35kg. The block and bullet then slide up the incline, assumed frictionless, and rise a height H= 1.25m before stopping. Calculate the speed of the bullet just before it hits the...
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    How Is Kinetic Energy Calculated at Point A in a Loop-the-Loop?

    17 m Got it dick... thanks for sticking with me and helping me out with this problem
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    How Is Kinetic Energy Calculated at Point A in a Loop-the-Loop?

    Wouldn't it be mgh
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    How Is Kinetic Energy Calculated at Point A in a Loop-the-Loop?

    PE = 0 at A
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    How Is Kinetic Energy Calculated at Point A in a Loop-the-Loop?

    R(1) and R(2) is the radius - 19m
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    How Is Kinetic Energy Calculated at Point A in a Loop-the-Loop?

    assumption... is it not zero?
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    How Is Kinetic Energy Calculated at Point A in a Loop-the-Loop?

    [SOLVED] Kinetic Energy A small block of mass m = 1.5 kg slides, without friction, along the loop-the-loop track shown. the block starts from the point P at rest a distance h = 55.0 m above the bottom of the loop of radius R = 19.0 m. What is the kinetic energy of the mass at the point A on the...
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    Find the size of the force due to wind and rolling friction

    ohhi thanks a lot !
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    Find the size of the force due to wind and rolling friction

    That's what I'm assuming... they gave me the weight in lbs. do I need to incorporate that into my equations in any way or is that just unnecessary/useless info.
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    Find the size of the force due to wind and rolling friction

    [SOLVED] Force Problem The total mass is 2300kg (weight = 5072lbs). Find the size of the force due to wind and rolling friction when the van speed is 42.17mph (1mph= 0.447m/s). This is the graph: http://capa-new.colorado.edu/msuphysicslib/Graphics/Gtype12/prob09a_1004minivan.gif" F = ma...
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    Discover the Tangential Velocity for the Wall of Death Amusement Park Ride

    The Wall of Death in an amusement park is comprised of a vertical cylinder that can spin around the vertical axis. Riders stand against the wall of the spinning cylinder and the floor falls away leaving the riders held up by friction. The radius of the cylinder is 3.9 m and the coefficient of...
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    Calculate Horizontal Force at an Incline

    [SOLVED] Force at an Incline A 3.54 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=11.90 N at an angle theta=16.0o above the horizontal, as shown. What is the speed of the block 6.10 seconds after it starts moving? Fgravity = (3.54*9.8) = 34.7N...
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    Force Problem with crash test car

    A set of crash tests consists of running a test car moving at a speed of 11.4 meters/sec (26 mph) into a solid wall. Strapped securely in an advanced seat belt system, a 59kg (130 lbs) dummy is found to move a distance of 0.66 meters from the moment the car touches the wall to the time the car...