Grayson is pushing a box across the floor. If the box has a mass of 68.0 kg, and the force of friction is 91.5 N, how much force will Grayson need to exert to accelerate the box at a rate of 1.41 m/s2 ?

Porque crees que el agua no podia subir mas de 10 m de altura con ese tipo de bomba

What are two different ways you could find the value of a? explain these methods.

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?