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100 balls each of mass \(m\) moving with speed v simultaneously strike a wall normally and are reflected back with the s…

Q1

100 balls each of mass \(m\) moving with speed v simultaneously strike a wall normally and are reflected back with the same speed, in time t s. The total force exerted by the balls on the wall is

a

\(\frac{100mv}{t}\)

b

\(\frac{200mv}{t}\)

c

\(200mvt\)

d

\(\frac{mv}{100t}\)

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