the mass of a car along with the driver is 1000 kg and it is all creation with 6 m/s2 within the distance of 500m. calculate the work done by the engine of the car
Answers
Explanation:
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Answer:
32500N
Explanation:
Mass of the helicopter is, 1000kg
The total mass of crew and passengers is, 300kg
Acceleration of the helicopter, a=15m/s
2
Total mass of the system, m
t
=1300kg
(a)
The reaction force applied by the crew and passengers on the floor of the helicopter is given by:
R−mg=ma
=m(g+a)
=300×(10+15)=7500N
So, the force exerted by the passengers on the floor is 7500 N
(b)
The reaction of the rotor on the surrounding air will be due to the mass of the helicopter as well as the passengers.
R
′
−m
t
g=m
t
a
=m
t
(g+a)
=1300×(10+15)=32500N
Thus, the reaction force of the rotor on the surrounding air will be 32500 N
(c)
The force on the helicopter due to the surrounding air will be the reaction of the force applied by the rotor on the air. Therefore, its value will be 32500 N