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two balls of similar size masses m and 2m are moving at speeds u and 2u along a frictionless plane, they collide head on and are reflected, assuming that the coefficient of restitution of this collision is 1, what the speeds are afterwards in u

ball A has mass m and velocity u. ball B has mass 2 m and velocity 2uby conservation of momentum:mu - 4mu = mv + 2mx (1)where v is the velocity of ball A and x is the velocity of ball B after collision.by co...
WA
Answered by William A. • Maths tutor
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Explain two investment appraisal techniques Johnson Boxes could use to assess the profitability of buying the new machinery from Cook Technology.

Investment appraisal is an evaluation of the attractiveness of an investment proposal and can be done via several methods. To measure the profitability of buying the new machinery from Cook Technology Tim Jo...
PD
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In what way does the seasonality affect operations of a busness?

The task of trying to maintain profitability throughout all periods of the year is a challenge for many businesses, particularly those who operate season businesses. Yet, the extend to which seasonality will...
TD
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An ordinary, fair sided dice is rolled 480 times. How many times is the number 3 expected?

An ordinary dice has six sides. We have an equal chance to roll on any of these six sides. This gives us the probability of rolling a 3 (or any other number) as 1/6.Each roll is independent i.e the result of...
LP
Answered by Louis P. • Maths tutor
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How do I solve a quadratic equation: x^2-5x+6=0

When solving a quadratic equation, you have two options. Take the general form ax^2+bx+c=0Method 1: Solution by FactorisingWhen the numbers involved look fairly simple, look for a way to factorise the quadra...
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Answered by Naomi C. • Maths tutor
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