Recent content by green123

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    Calculating Height for Shaun White's Snowboarding Trick

    ok, i think i got it, thanks for your help!
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    Calculating Height for Shaun White's Snowboarding Trick

    so vf =0?
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    Calculating Height for Shaun White's Snowboarding Trick

    that his velocity is 9.8m/s
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    Calculating Height for Shaun White's Snowboarding Trick

    is the initial velocity 34.3m/s?
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    Calculating Height for Shaun White's Snowboarding Trick

    oooohhhh ookk... Thanks! so it would be Vf=0+9.8(3.5) Vf=34.3 D=.5(0+34.3)3.5 D=60m right?
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    Bocce Ball Impulse & Kinetic Energy Calculations

    i don't believe so, all i need to know is the force it took for the grass to stop the ball in 1.8 seconds and the coefficient of friction between the grass and the ball.
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    Calculating Height for Shaun White's Snowboarding Trick

    What is the acceleration?
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    Bocce Ball Impulse & Kinetic Energy Calculations

    i don't know, that's just what the problem says... its not necessarily realistic
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    Bocce Ball Impulse & Kinetic Energy Calculations

    Homework Statement A bocce ball (A) with a mass of 3 kg is thrown with a force of 40 N. It collides with another ball (B) that is at rest. The contact time is .5 seconds. a. What is the Impulse given to ball B by ball A? b. If ball B was at rest before being hit, with what velocity does ball...
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    Bike Race Problem: Solving for Applied Force, Work, Power & Acceleration

    Homework Statement Contador climbs a 5 degree section of road for 8.2 km to the summit in 20 minutes 35 seconds. he is 62kg? his bike is 8kg and the resistance force is 21 N What is the applied force needed for contador to move at constant speed? what is the work done to reach the...
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    Calculating Height for Shaun White's Snowboarding Trick

    Homework Statement How much height above the half pipe does 85kg Shaun White need to complete the 3.5 second trick? Homework Equations d=.5(vi+vf)t net force= ma pe=mgh vf= vi+at The Attempt at a Solution no