Answer:
Velocity of the teen = 5m/s
Mass of the truck = 100kg
Explanation:
Momentum can be found with the equation
P = m * v
Where P is momentum in kg*m/s, v is velocity in m/s and m is mass in kg.
Substitute in our values and solve for the unknowns
1.) P = m * v
250 = 50 * v
Divide both sides of the equals by 50 to solve for v
250/50 = v * 50/50
v = 5m/s
2.) P = m * v
20500 = m * 205
Divide both sides of the equals by 205 to solve for m
20500/205 = m * 205/205
m = 100kg
