Question

Мальчик бегущий со скоростью 6 м/c догоняет велосипедиста движущуюся со скоростью 4 м/c и вскакивает на нее. С какой скоростью станет двигаться велосипедиста после этого? если масса мальчикам 40 кг а велосипедиста вместе с велосипедом 60кг

Answer 1

Велосипедист вместе с велосипедист?

Answer 2

Problem Analysis

We are given the following information: - A boy is running with a speed of 6 m/s. - He catches up to a cyclist who is moving with a speed of 4 m/s. - The boy jumps onto the cyclist. - The mass of the boy is 40 kg. - The mass of the cyclist and the bicycle together is 60 kg.

We need to find the speed at which the cyclist will move after the boy jumps onto the bicycle.

Solution

To solve this problem, we can use the principle of conservation of momentum. According to this principle, the total momentum before the boy jumps onto the bicycle should be equal to the total momentum after the boy jumps onto the bicycle.

The momentum of an object is given by