Lab7.rtf - PHY 205 Sections II Lab: 7 October 18,05...

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PHY 205 Sections II Lab: 7 October 18,05 Momentum Conservation in a Completely Inelastic Collision The Ballistic Pendulum Bijaya Singh Thapa Abstract: The momentum of a body is defined as the product of the mass and its velocity. Newton’s second law of motion states that the time rate of change of momentum is proportional to net force acting on a body. Hence, if the sum of the external forces acting on a body is zero, the linear momentum of the body is constant. This is essentially a statement of the law of conservation of momentum. Applied to a system of bodies, then the momentum of the system as whole doesn’t change. Conservation of momentum gives, P i = mv = (m+M)V =p f (1) Horizontal Distance d, d = vt (2) Vertical distance h, h = (½)gt 2 (3) t = (2h/g) ½ (4) Momentum just after collision, ½ (m+M)V 2 = (m+M)gH (5) When the pendulum swings to the highest point. V = (2gH) ½ (6)
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Part A. Range Measurements Distance d1 150 cm Shots Distance d2 1 68.5 2 68.5 3 68 4 69 5 69 Average
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Lab7.rtf - PHY 205 Sections II Lab: 7 October 18,05...

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