Question

Solve for the missing variable for each set. Showing ALL work through GUESS Method. Given, Unknown, Equation, Setup, Solve. 1. P=?, M=20 kg, V=5 m/s 2. P= 3000 kg(m/s), M=?, V=75 m/s

Answer 1

Answer:

(1) P = 100 kg-m/s (2) M = 40 kg.

Explanation:

We need to solve the missing variable :

1. P=?, M=20 kg, V=5 m/s

If M is mass, V is velocity, then momentum P is given by :

P = MV

P = 20 kg × 5 m/s

P = 100 kg-m/s

(2) P= 3000 kg(m/s), M=?, V=75 m/s

$M=\dfrac{P}{V}\\\\M=\dfrac{3000}{75}\\\\M = 40\ kg$

Hence, P = 100 kg-m/s and M = 40 kg.