The acceleration will be 15m/s2
What you mean to say is: "The net force acting on the ball is 30 N."F = M AA = F / M = (30) / (4) = 7.5 m/s2
For an object experiencing a constant net force, Newton's Second Law of Motion can be used to obtain the equationF = ma,where F is the net force, m is the mass of the object and a is the acceleration of the object due to the net force, F. Rearranging the equation for acceleration and substituting in the mass of the box and the net force acting on it givesa = 900N/300kga = 3ms-2.
30kg = 30kg.
neither float nor sink
6,000 J
3 tenths of 30kg = 3/10 * 30kg = 9kg
300 kg
It is extremely unlikely that you will find 2 men of 30 kg!
Work = Force x DistanceForce = Mass X Gravity (Near earth approximation)SoWork = 30kg x 9.8 m/s2 x 20m = 5880 joules
20% of 30kg= 20% * 30= 0.2 * 30= 6kg
A: The mass would not change: 30kg. A: The Earth would be about 5.9742 × 1024 kg
30000