1. An object's speed is 7.20 m/s, and its momentum is 360.0 kgm/s. What is the mass of the object?

M = mV = 360kgm/s.

m*7.2 = 360,
m = 50 kg.

To find the mass of the object, we can use the formula for momentum:

Momentum = mass × velocity

Given that the momentum is 360.0 kgm/s and the velocity is 7.20 m/s, we can rearrange the formula to solve for mass:

mass = Momentum / velocity

Substituting the given values:

mass = 360.0 kgm/s / 7.20 m/s

Simplifying the expression:

mass = 50 kg

Therefore, the mass of the object is 50 kg.