Question

A rocket fires two engines simultaneously. One produces a thrust of 660 N directly forward while the other gives a thrust of 473 Nat an angle 15.6 ∘ above the forward direction.

A.)Find the magnitude of the resultant force which these engines exert on the rocket.

B.)Find the deviation of the direction (relative to the forward direction) of the resultant force which these engines exert on the rocket.

Answer 1

A)

Magnitude, F = sqrt[660^2 + 473^2 + 2 x 660 x 473 x cos15.6] = 1122.80 N

B)

Theta = arctan [(473 sin15.6)/(660 + 473 cos15.6)] = 6.50 degree

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