(a)
The work done by the force from
(a)
Explanation of Solution
Given:
Mass of the object is
Velocity of the object is
Formula used:
Write expression for work done by the force from
Here,
Write expression for area of square.
Here,
Calculation:
Substitute
Substitute
Conclusion:
Thus, work done by the force is
(b)
The kinetic energy of object at
(b)
Explanation of Solution
Given:
Mass of the object is
Velocity of the object is
Formula used:
Write expression for work done by the force from
Here,
Write expression for area of square.
Here,
Write expression for kinetic energy at
Substitute
Calculation:
Substitute
Substitute
Substitute
Conclusion:
Thus, kinetic energy at
(c)
The speed of object at
(c)
Explanation of Solution
Given:
Mass of the object is
Velocity of the object is
Formula used:
Write expression for velocity at
Calculation:
Substitute
Conclusion:
Thus, the velocity of object is
(d)
The work done on the object from
(d)
Explanation of Solution
Given:
Mass of the object is
Velocity of the object is
Formula used:
Write expression for work done on the object from
Here,
Write expression for area of square.
Here,
Calculation:
Substitute
Substitute
Conclusion:
Thus, work done is
(e)
The speed of object at
(e)
Explanation of Solution
Given:
Mass of the object is
Velocity of the object is
Formula used:
Write expression for kinetic energy at
Substitute
Write expression for velocity at
Calculation:
Substitute
Substitute
Conclusion:
Thus, velocity of the object is
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Chapter 6 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
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