Concept explainers
a.
To simplify the formula if the mass of the ball is 3 kilogram.
a.
Answer to Problem 50PPS
Explanation of Solution
Given:
The speed v of a ball can be determined by the equation
Mass, m is 3 Kilogram.
Calculation:
Consider the given equation,
The speed v of a ball can be determined by the equation
Conclusion:
Therefore, when the mass of the ball is 3 kilogram, the speed of the ball is
b.
To calculate the kinetic energy of the ball in Joules.
b.
Answer to Problem 50PPS
73.5 Joules
Explanation of Solution
Given:
The speed v of a ball can be determined by the equation
v = 7 meters per second.
Calculation:
Given that the speed of the ball is 7 meters per second.
Substituting in the formula,
From subpart (a),
Squaring on both sides,
Conclusion:
Therefore, the kinetic energy of the ball is 73.5 Joules.
Chapter 10 Solutions
Algebra 1
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