Arocket sled accelerates at a rate of 49.0 m/s2 . its passenger has a mass of 75.0 kg. (a) calculate the horizontal component of the force the seat exerts against his body. compare this with his weight using a ratio. (b) calculate the direction and magnitude of the total force the seat exerts against his body.

Explanation:

It is given that,

Mass of the passenger, m = 75 kg

Acceleration of the rocket,

(a) The horizontal component of the force the seat exerts against his body is given by using Newton's second law of motion as :

F = m a

F = 3675 N

Ratio,

So, the ratio between the horizontal force and the weight is 5 : 1.

(b) The magnitude of total force the seat exerts against his body is F' i.e.

F' = 3747.7 N

The direction of force is calculated as :

Hence, this is the required solution.

all of the answers are correct.

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explanation:

50 inches should be the resultant vector