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(in J) A block of mass 2.20 kg is pushed 2.00 m along a frictionless horizontal

ID: 1875066 • Letter: #

Question

(in J) A block of mass 2.20 kg is pushed 2.00 m along a frictionless horizontal table by a constant 19.3 N force directed 22.9° below the horizontal. Determine the work done by the applied force 3.56x 101 3:5. 16 x 101 -C-7.48x101 d: 1.08x102|E: 1021-F 102 G: 3.30×102 H: 4.79x102 1.57 2.28 Submit Answer Tries 0/3 Determine the magnitude of the normal force exerted by the table. (in N) A: 6.10B: 7.62C: 9.53D: 11.91E: 14.88F: 18.60 G: 23.26 H: 29.07 Submit Answer Tries 0/3 Determine the magnitude of the force of gravity (in N) A: 13.80 B: 17.25OC: 21.56 D: 26.95 E: 33.69F: 42.11G: 52.64 H: 65.80 Submit Answer Tries 0/3 Determine the net force on the block. (in N) A: 8.54 B: 9.65C: 1.09x101D 1.23x101OE: 1.39x10F: 1.57x101 G: 1.78x101OH: 2.01x101 Submit Answer Tries 0/3

Explanation / Answer

1)A) 3.56*10^1 J

Workdone = F*s*cos(theta)

= 19.3*2*cos(22.9)

= 35.6 J

2) H) 29.07 N

N = m*g + F*sin(theta)

= 2.2*9.8 + 19.3*sin(22.9)

= 29.1


3) C)21.56 N

Fg = m*g

= 2.2*9.8

21.56 N

4) G) 1.78*10^1 J

Fnet = F*cos(theta)

= 19.3*cos(22.9)

= 17.8 J