Question

Two bodies of masses 5kg and 4kg are acted upon by the same force if the acceleration of lighter body is 3 metre per second square then find the acceleration of heavier body . Also fibd the acceleration when the combined object is taken .

Answer 1

ma1=m2a2
4*3=5*a2
12=5a2
a2=12/5=2.4m/s^-2
acceleration for the combined object is 3+2.4=5.4m/s^-2