Concept explainers
The applied force
Answer to Problem 10TP
The applied force is around
Explanation of Solution
Given:
Number of bricks in the wheel barrow is
Mass of each brick is
Formula used:
Write the expression for force.
Here,
Write the expression for torque.
The mechanical
The torque due to the output force is equal n magnitude and opposite in direction o the torque caused by the weight. Thus,
Since, the mechanical advantage is the ratio of output force to input force. The ratio can be written as,
Conclusion:
Force due to wheelbarrow is calculated as,
Force due to the weight of
Total force due to the weight is calculated as,
The net torque s calculated as,
The output force is calculated as,
The input force is calculated as,
For an empty wheelbarrow the output force is,
The input force for an empty wheelbarrow is calculated as,
Conclusion:
Therefore, the applied force is around
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Chapter 9 Solutions
COLLEGE PHYSICS
- Consider the following. (a) The nail puller shown in the figure above is designed such that you exert a force 41.0 cm from the pivot and the nail is 1.85 cm from the pivot on the other side. Determine the mechanical advantage of the nail puller. (b) Determine the minimum force must you exert in order to apply a force of 1200 N to the nail. N (c) If the nail puller has a mass of 2.10 kg, determine the force the nail puller exerts on the supporting surface. magnitude direction -Select---arrow_forwardFind the mass m of the counterweight needed to balance the 1,923-kg truck on the incline shown as shown in the figure. Treat the pulleys as solid cylinders. The value of r is 1. The mass of the small pulley is M1 = 58 kg while the larger pulley is M2 = 137 kg. Ignore the mass of the pulley connected to the truck. Are the masses of the pulleys M1 and M2 needed in the calculation (answer this question to yourself only)? e = 45° Note: final answer with zero decimal place.arrow_forward4. Abbot and Costello are transporting a 0.125m3 cubic block along a ramp inclined at 20°. They tied the block under the midpoint of a 3m, 2kg, pole-arm. Abbot is at the lower end of the pole while Costello leads the pair up, holding the other end of the pole. Calculate the upward forces exerted by Abbot and Costello during the transport if the block weighs 1000N.arrow_forward
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