a 12 kg physics book flies through the air with a momentum of 20kg m/s. what is its speed?
Momentum formula:
momentum = mass x velocity
substituting,
20 = 12 * v
v = ?
Units in m/s
5/3 m/s
To find the speed of the book, we can use the formula for momentum:
Momentum = mass x velocity
Given that the momentum of the book is 20 kg m/s and the mass of the book is 12 kg, we can rearrange the formula to solve for velocity:
velocity = momentum / mass
Substituting the given values:
velocity = 20 kg m/s / 12 kg
Simplifying the equation:
velocity ≈ 1.67 m/s
Therefore, the speed of the book is approximately 1.67 m/s.