A boat's propeller has a rotational inertia of 4.0 kg · mº. After a constant torque is applied for 12 s, the rad

rad

propeller's angular speed changes from a clockwise 6.0 to a counterclockwise 6.0

S

S

What was the torque applied to the propeller?

the answer would be   dignified - apex

i think its c if i'm wrong

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.