Question

Pls solve the question in the attachment :

Answer 1

Answer:

The work done by the driving force is 1275 kilo Joules.

Explanation: Let's first list out the things we have:

$m=1500kg$

$u=36km/h=36*\frac{5}{18}=10m/s$

$v=108km/h=108*\frac{5}{18}=30m/s$

WORK ENERGY THEOREM:

$W=\frac{m{v}^2}{2} - \frac{m{u}^2}{2}$

$W=\frac{1500*{30}^2}{2} - \frac{1500*{10}^2}{2}$

$W=1350000-75000$

$W=1275000J$

$W=1275kJ$

Answer 2

Answer:

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