what is the velocity

Question

students trying to finish the race carrying a 20kg sacks of sand and their momentum is 30 kg m/s. how fast are they

with solutions

Answer 1

To determine the velocity of the students, we can use the principle of conservation of momentum. The momentum of an object is given by the product of its mass and velocity.

The equation for momentum is: momentum = mass × velocity

Given that the momentum is 30 kg m/s and the mass of the students and sand is 20 kg, we can rearrange the equation to solve for velocity:

30 kg m/s = 20 kg × velocity

Dividing both sides of the equation by 20 kg gives:

velocity = (30 kg m/s) / 20 kg velocity = 1.5 m/s

Therefore, the students are moving at a velocity of 1.5 meters per second.