Loss of Kinetic Energy During Impact<\/h3>\n
Consider two bodies of mass m1 and m2 moving with respective velocities u1 and u2 before impact. Let v1 and v2 is their respective velocities after impact, then<\/p>\n
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Consider two bodies of mass m1 and m2 respectively. Let these bodies be moving with respective velocities u1 and u2 before impact. The impact will take place only if u1 > u2. Thus, velocity of approach is (u1 \u2013 u2).<\/p>\n
After a short period of contact, the bodies will separate and will start moving with velocities v1 and v2 respectively. The separation will occur only if v2 > v1 and velocity of separation is (v2 \u2013 v1).<\/p>\n
Newton\u2019s law of collision for elastic bodies states that<\/p>\n
When two moving bodies collide with each other, their velocity of separation bears a constant ratio with their velocity of approach.<\/p>\n
or v2 \u2013 v1=e(u1 \u2013 u2)<\/p>\n
where e is a constant of proportionality and is known as coefficient<\/a> of restitution. The coefficient of restitution is a parameter which indicates the energy lost during an impact. The value of e lies between 0 and 1. If e = 0, the impact is inelastic. If e = 1, the impact is perfectly elastic.<\/p>\n Consider two bodies of mass m1 and m2 moving with respective velocities u1 and u2 before impact. Let v1 and v2 is their respective velocities after impact, then<\/p>\nLoss of Kinetic Energy During Impact<\/h3>\n
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