Calculate the time it takes the projectile to reach its maximum vertical distanc

Question

Calculate the time it takes the projectile to reach its maximum vertical distance. Calculate the magnitude and direction of the total velocity after 6.5 s Calculate the X- and Y- positions of the projectile after 6.5 s. A Block of mass 100 kg is pulled to the right by two forces F1 and F2 with the values shown in the diagram above. F2 is applied 50degree with the possitve x-axis, and F1 is is along the horixontal Calculate the total force acting on the block Calculate the direction of the total force Calculate the acceleration applied to the block If the block is initially at rest, calculate the final velocity after it has traveled 125 m

Explanation / Answer

A) Resultant Force = sqrt{ 89^2 + 105^2 + 2×89×105 cos50}

= 109.6N

B) Direction of force

tan alpha = Bsin 50/( A + Bcos50) = 80.43 /{89 + 67.49}

=0.514

alpha = 27.2 degree with horizontal

C) a = F/m =1.096 m/s2

D) v^2 = u^2 + 2as

= 0 + 2×1.096×125 =274

v = sqrt 274 =16.55 m/s Answer

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