Answer:
(a). The work done is 472 J.
(b). The force exerted is 2.76 kN.
Explanation:
Given that,
Distance = 17.1 cm
Mass of object = 281.5 kg
(a). We need to calculate the work done
Using formula of work done
[tex]W=F_{net}\dotc d[/tex]
[tex]W=mg\cdot d[/tex]
Where, m = mass
g = acceleration due to gravity
d = distance
Put the value into the formula
[tex]W=281.5\times9.8\times17.1\times10^{-2}[/tex]
[tex]W=472\ J[/tex]
The work done is 472 J.
(b). We need to calculate the force
Using action reaction principle
[tex]F=F'[/tex]
[tex]F=mg[/tex]
Put the value into the formula
[tex]F=281.5\times9.8[/tex]
[tex]F=2.76\ kN[/tex]
The force exerted is 2.76 kN.
Hence, (a). The work done is 472 J.
(b). The force exerted is 2.76 kN.
