Question

13. A 215kg crate is pulled by a rope (attached to a truck) that is parallel to the ground. The coefficient of kinetic friction between the ground and the crate is 0.35. (a) If the crate is being pulled at a constant speed, determine the tension in the rope. (b) If the crate is being pulled with an acceleration of 1.5 m/s^2, determine the tension in the rope. (c) During the acceleration, if the Young’s Modulus of the rope is 2 × 109 Nm2, what will be the strain on the rope, assuming that its cross-sectional area is 1.0 × 10−4m2? (d) If the original length of the rope is 5.000m, what would be the new length while it is pulling the crate?

          13. A 215kg crate is pulled by a rope (attached to a truck) that is parallel to the ground.
The coefficient of kinetic friction between the ground and the crate is 0.35.
(a) If the crate is being pulled at a constant speed, determine the tension in the rope.
(b) If the crate is being pulled with an acceleration of 1.5 m/s^2, determine the tension in the rope.
(c) During the acceleration, if the Young’s Modulus of the rope is 2 × 109 Nm2, what will be the strain on the rope, assuming that its cross-sectional area is 1.0 × 10−4m2?
(d) If the original length of the rope is 5.000m, what would be the new length while
it is pulling the crate?

Added by Alexis R.

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