A2-kg rock is thrown upward with a force of 150 n at a location where the local gravitational acceleration is 9.79 m/s2. determine the acceleration of the rock, in m/s2.

65.2 m/s²

Explanation:

F = magnitude of the force applied in upward direction on rock = 150 N

m = mass of the rock = 2 kg

g = gravitational acceleration = 9.79 m/s²

a = acceleration of the rock

Taking upward direction as positive, force equation for the motion of rock is given as

F - mg = ma

Inserting the values

150 - (2) (9.8) = 2 a

a = 65.2 m/s²

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