The person in Figure P5.35 weighs 170 lb. As seen from the front, each light crutch makes an angle of 22.0° with the vertical. Half of the person's weight is supported by the crutches. The other half is supported by the vertical forces of the ground on his feet. Assuming the person is moving with constant velocity and the force exerted by the ground on the crutches acts along the crutches, determine (a) the smallest possible coefficient of friction between crutches and ground and (b) the magnitude of the compression force in each crutch. 22.0° 22.0°
The person in Figure P5.35 weighs 170 lb. As seen from the front, each light crutch makes an angle of 22.0° with the vertical. Half of the person's weight is supported by the crutches. The other half is supported by the vertical forces of the ground on his feet. Assuming the person is moving with constant velocity and the force exerted by the ground on the crutches acts along the crutches, determine (a) the smallest possible coefficient of friction between crutches and ground and (b) the magnitude of the compression force in each crutch. 22.0° 22.0°
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Transcribed Image Text:The person in Figure P5.35 weighs 170 Ib. As seen from the front, each light crutch makes an angle of
22.0° with the vertical. Half of the person's weight is supported by the crutches. The other half is
supported by the vertical forces of the ground on his feet. Assuming the person is moving with constant
velocity and the force exerted by the ground on the crutches acts along the crutches, determine (a) the
smallest possible coefficient of friction between crutches and ground and (b) the magnitude of the
compression force in each crutch.
22.0°
22.0°
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