Question

An 80kg man is parachuting and experiencing a downward acceleration of

2.5m/s2 . The mass of the parachute is 5 kg.

(i) What is the value of the upward force exerted on the parachute by the air?

(ii) What is the value of the downward force exerted by the man on the parachute?

Answer 1

$F_1=(m_1+m_2)a=213~N,$

$F_2=m_1g=800~N.$