Answer:a)480Nm b)2080Nm c)2560Nm d)2880Nm
Step-by-step explanation:
Work is said to be done when a force is applied to move an object through a particular distance.
Workdone=Force×distance
Force=160.0N
a) when a block moves from +8cm distance to +5cm, the total distance covered will be 3cm
Workdone=160×3 = 480Nm
b)when a block moves from +8cm distance to -5cm, the total distance covered will be +13cm
Workdone=160×13 = 2080Nm
c)when a block moves from +8cm distance to -8cm, the total distance covered will be +16cm
Workdone=160×16 = 2560Nm
d)when a block moves from +8cm distance to -10cm, the total distance covered will be +18cm
Workdone=160×18 = 2880Nm