Ram and Ali are two friends. Both work in a factory. Ali uses a camel to transport the load within the factory.
Due to low salary & degradation in health of camel, Ali becomes worried and meets his friend Ram and discusses his problem. Ram collected some data & with some assumptions concluded the following.  
(i) The load used in each trip is 1000 kg and has friction coefficient $\mu$_k = 0.1 and $\mu$_s = 0.2.
(ii)  Mass of camel is 500 kg.
 (iii) Load is accelerated for first 50 m with constant acceleration, then it is pulled at a constant speed of 5m/s for 2 km and at last stopped with constant retardation in 50 m. (String used for pulling load is almost horizontal).