Question

What is the work
to be done to increase
the Velocity ta far from bolamba to so karth
mass of the car is 4500kg?​

Answer 1

$\sf{Initial~Veloity~u→30km/h→30\times\frac{5}{18} →\frac{25}{3} m/s}$

$\sf{Final~velocity~v→60km/h→60\times~\frac{5}{18} →\frac{50}{3}~m/s}$

$\sf{Mass~m→1500kg}$

$\sf{Work~done~w→\frac{1}{2}mv^2-\frac{1}{2} mu^2}$

$\sf{⟹W→\frac{m}{2} (v^2-u^2)→\frac{1500}{2} \times[(\frac{5}{3} )^2-\frac{25}{3})^2]→156187~J}$

$\sf{.°.~The~work~done~to~be~increase~is~156187~Joule}$