Newton's Laws - Mission NL10 Detailed Help

A 2-kg (or a 3-kg) object is thrown upwards with an initial velocity of 16 m/s (or 15 m/s) . At the peak of the trajectory, the approximate magnitudes of the net force and acceleration are ...

Once the object is projected, the only force of influence is the force of gravity. The object is in a state of free fall and its acceleration is the free fall acceleration value - g. Since the force of gravity is the only force acting upon the object, the net force is equal to the force of gravity - m•g.

The force of gravity (or weight) acting upon an object can be calculated using the equation:
Fgrav = mass • g
where g is the acceleration caused by gravity alone. The value of g on Earth is 9.8 m/s/s (approximately 10 m/s/s).


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