PHY2048C (Spring18) Assignment 5 Assignment S Begin Date: 29/2018 10:00:00 AM-Du

Question

PHY2048C (Spring18) Assignment 5 Assignment S Begin Date: 29/2018 10:00:00 AM-Due Date: 2/16/2018 9:05:00 AM End Date: 2/19/2018 10:00:00 AM Problem 1: A block with mass m-3 kg is submerging with constant acceleration-0,63 ms2 into the level cart. The free-fall acceleration is g- 9.81 m's.Please answer the following questions Ctheexpertta.com Part (a) Write an expression for the magnitude of the force of gravity on the block, F n the palette. in terms of the given quantities and variables availalb Select from the variables ", p, , p, 0,, d, FN, g, h, j, k, m, P, t below to write your expression. Note that all variables may not be required Part (b) Calculate the magnitude of the force of gravity on the block, Fg in Newtons. Numeric : A numeric value is expected and not an expression. Part (c) In what direction does the force of gravity act? MultipleChoice 2) None of these choices. 3) All of these choices. 4) Upwards 5) Sideways. 6) Force doesn't have direction. Part (d) Write an expression for the magnitude of the total force of the system in the y-direction, FT, in terms of the forces of the system. Select from the variables below to write your expression. Note that all variables may not be required. Part (e) Write an expression for the magnitude of the normal fonce Fw, in terms of m, an, and g. Expression Select from the variables below to write your expression, Note that all variables may not be required. a,p.. p, 0,#7, d, FN, g, h, j, k, m, P, t Part (0 What is the magnitude of the normal force in N? Numeric : A numeric value is expected and not an expression Part (g) In what direction is the normal force? MultipleChoice

Explanation / Answer

Given,

m = 3 kg ; aT = 0.65 m/s^2 ; g = 9.81 m/s^2

a)Fg = mg

b)Fg = 3 x 9.81 = 29.43 N

Hence, Fg = 29.43 N

c)(1)downwards

d)FT = m aT + m g = m (aT + g)

since a also acts in the direction of gravity, the two adds up

e)FN = mg

f)Fn = 29.43 N

g)The normal force is a reaction force, so its in the apposite direction to that of gravity, Hence upwards.

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