APPLICATION A trolley of mass 200g is placed on a table. A mass piece of 20g is attached to the
trolley through a string. Ignore the effects of friction

1. State Newton's scecond law
(205)
2. Sketch free-body diagrams for the trolley and the masspiece
(5)
3. Calculate the acceleration of the trolley.​

How are calculation for velocity and speed different

Juan created a chart to him study for a test. which headings best complete the chart? x: transparent objects y: opaque objects x: opaque objects y: transparent objects x: high frequency waves y: low frequency waves x: low frequency waves y: high frequency waves

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?