Air, water , atomic acid , and pocket rocket
Since the crate is moving at constant velocity the net force on the crate is zero. Since the crate is moving we are referring to the coefficient of dynamic friction. R is the reaction and is equal to the weight of the block mg. The effort is now doubled so the forces on the block are not balance
Answer:
gravity pulls the falling object to the ground
Explanation:
From Newton's second law of motion,
F=ma
Where, F = applied force, m = mass (=0.15 kg), a = acceleration.
a= Δv/t, Δv= Change in velocity, t = time
Therefore
a = (41-37)/0.088 = 45.45 m/s^2
Then,
F = 0.15*45.45 = 6.82 N
Different theories in science rely on the current available knowledge that has been obtained through a certain way of data collection/that has used certain technology to obtain such data. With new technology, new datasets can be obtained that perhaps are not in line with previous theories. By improving technology, new datasets can be obtained and through this theories can be advanced, improved and developed.
