e contact your instructor if you have any questions. Question 1 2 pts The wheels

Question

e contact your instructor if you have any questions. Question 1 2 pts The wheels of a vehicle exert a force of 2260 N backward on the road to accelerate the car in the forward direction. If the force of friction, including air resistance, is 278 N and the acceleration of the car is1.16 m/s2, what is the mass of the car plus its occupants? D Question 2 2 pts What is the force exerted on the ship by a 1093 kg artillery shell fired with an acceleration of 21 km/s? Give your answer in millions of Newtons F5 F6 F7 F8 F9 F10 F11

Explanation / Answer

Given,

F = 2260 N ; Ff = 278 N ; a = 1.16 m/s^2

Let m be the mass of the car plus the occupants.

The net force acting on the system is:

Fnet = F - Ff

Fnet = 2260 - 278 = 1982 N

Also, Fnet = ma

ma = 1982 N => m = 1982/a

m = 1982/1.16 = 1708.62 kg

Hence, m = 1708.62 kg

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