Please explain the following Why is delta r not zero? Why is May zero? Why is MA
ID: 3164196 • Letter: P
Question
Please explain the following Why is delta r not zero? Why is May zero?Why is MAx remain MAx?
0 x 800.0 cm (BON Amassless spring with spring constant k 130.0 N/m has a 4.00 kg mass, shown as a sphere, attached to it. Ru 0.400. A constant force F directed towards the left is applied to the mass. The force has magnitude IFI 82.0 N.The mass is shown at the instant when the spring has been stretched by 80.0 cm; the mass starts from (xo 0, yo 0). (a) Draw a free-body diagram for the mass, labelling all forces. Make sure to write down which force each symbol stands for. (b) Compute the magnitude of the force the spring applies to the mass when x 80.0 cm. (First, change x to meters.) A particle attached to spring, whose extension is xwith positive values for stretching and negative values for compression, has a force applied to it by the spring of magnitude klxl.This isHooke's (c) on the figure, draw the displacement vector, AP, of the mass. (d) Find lArl. (e) Complete the following tables
Explanation / Answer
the direction of delta r is towards left not right as the ball is at maximum displacement position now the spring will pull it back and so the vector is making 180 degree from the horizontal not 0 degree..
May is zero because May = Fy (vertical forces) and Fy = Na - Wa and from figure always remember Normal is equal to weight so Na = Wa = mg so Na - Wa = 0 ( - sign is due to opposite direction)
now similarly But in case of Horizontal forces they will not be zero since the body is not under equilibrium. so Max is same as calculated
Hope it Helps you..