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w#3 Forces-storr_ (37578) KS 3 28° Find the acceleration of the block. Answer in

ID: 1883669 • Letter: W

Question

w#3 Forces-storr_ (37578) KS 3 28° Find the acceleration of the block. Answer in units of m/s2 010 (part 2 of 3) 10.0 points What is the block's speed when, starting from rest, it has traveled a distance of 2.35 m along the incline. Answer in units of m/s 011 (part 3 of 3) 10.0 points What is the magnitude of the perpendicular force that the block exerts on the surface of the plane at a distance of 2.35 m down the incline? Answer in units of N 012 10.0 points A block of mass m accelerates with accelera- tion g up a frictionless plane that is inclined at an angle o above tihe horizontal. The force Fo that pushes the block is at an angle 3 above the horizuatal. Find thes foce F

Explanation / Answer

here,

9)

mass , m = 3.86 kg

s = 2.35 m , theta = 28 degree

the accelration , a = net force/effective mass

a = ( m * g * sin(theta)) /m

a = 9.81 * sin(28) m/s^2

a = 4.61 m/s^2

10)

the final speed , v = sqrt(2*a*s)

v = sqrt(2*4.61*2.35) m/s

v = 4.65 m/s

11)

the magnitude of perpendicular force , N = m * g * cos(theta)

N = 3.86 * 9.81 * cos(28) N

N = 33.4 N