Newtons 2nd law
The force of earths gravity is about 10 N downward. Whats the acceleration of a 15kg backpack if lifted with a 15N force??
F-F(gr) = ma
a= {F-F(gr)}/m =
=(15-10)/15=0.33 m/s² (upward)
english please and less sciencey
How do you know this?!
ya
To find the acceleration of the backpack, we can use Newton's second law of motion, which states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
The formula for Newton's second law is:
F = m * a
where F represents the net force, m represents the mass of the object, and a represents the acceleration.
In this case, we know that the net force is 15N and the mass of the backpack is 15 kg. We can rearrange the formula to solve for acceleration:
a = F / m
Plugging in the given values, we have:
a = 15N / 15kg
Canceling out the units, we find that the acceleration of the backpack is:
a = 1 m/s²
Therefore, the acceleration of the 15kg backpack when lifted with a 15N force is 1 m/s².