Option 1 : A metal ball is dropped from the top of a skyscraper 250 m high into an underground parking at the base of the skyscraper. When is the sound heard at the top? Given, g = 10 m/s^2 and speed of sound, v = 340 m/s.

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Option 2 : Yuki starts a Truck from rest and moves down the hill with constant acceleration. It travels a distance of 350 m in 22 s. Find the force acting on the Truck if its mass is 20.0 tonnes.

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Option 3 : A stone of 0.95 kg is thrown with a velocity of 16 m/s across the frozen surface of a lake and the stone comes to rest after travelling a distance of 48 m. Ivan correctly calculates the force of friction between the stone and the surface. What is the value he gets?

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Option 4 : Ivan completes six passes through the city bike lanes of length 263 m in 2 minutes 1 s. What will be the distance covered at the end of 9 minutes 29 s?

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