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Henry = Wt. of
Answers (4)
L = 2/5 = 0.40 m =40m. V = L*W*h = 40 * 3 * 3 = 360 cm^3. 360cm^3/2cm^3 = 180 Cubes.
V = 40km/h = 40,000m/3600s = 11.1 m/s. Vo = 80km/h = 80,000m/3600s = 22.2 m/s. 1. V^2 = Vo^2 + 2a*d = (11.1)^2. (22.2)^2 + 2a*500 = (11.1)^2, 1000a = (11.1)^2-(22.2)^2 = -369.63, a = -0.370 m/s^2. (22.2)^2 + 2*(-0.370)*d = 0. -0.740d = -(22.2)^2, d = 666
The answer is blowing in the win.
M*g = 2 * 9.8 = 19.6 N. = Wt. of block. Fn = 19.6 - 3*sin45 = 17.5 N. = Normal force. Fs = us*Fn = 0.5 * 17.5 = 8.74 N. = Force of static friction. Fap*Cos45-8.74 = M*a. Fap*Cos45 = 8.74 + M*0, Fap = 12.4 N. = Force applied = Force needed to start the
