Question

A calesa pulled by a horse carries a 75.0-kg load containing copies of modules to be distributed in remote barangays. The calesa has a mass of 2.50 x 103 kg. If the calesa moves accelerates at a rate of 4.00 m/s2 , how much pull was exerted by the horse? 

Answer 1

$F=Ma=(m_1+m_2)a=10.3~kN.$