A motorcycle accelerates from rest, and both the front andrear tires roll without slipping. (a) Is the force exerted by theground on the rear tire in the forward or in the backward direction? Explain. (b) Is the force exerted by the ground on the fronttire in the forward or in the backward direction? Explain. (c) If themoment of inertia of the front tire is increased, will the motorcycle’s acceleration increase, decrease, or stay the same? Explain

A motorcycle accelerates from rest, and both the front andrear tires roll without slipping. (a) Is the force exerted by theground on the rear tire in the forward or in the backward direction? Explain. (b) Is the force exerted by the ground on the fronttire in the forward or in the backward direction? Explain. (c) If themoment of inertia of the front tire is increased, will the motorcycle’s acceleration increase, decrease, or stay the same? Explain

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 70P: Part of riding a bicycle involves leaning at the correct angle when making a turn, as seen below. To...

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The board sandwiched between two other boards in Figure P4.77 weighs 95.5 N. If the coefficient of friction between the boards is 0.663, what must be the magnitude of the compression forces (assumed to be horizontal) acting on both sides of the center board to keep it from slipping?
The board sandwiched between two other boards in Figure P4.91 weighs 95.5 N. If the coefficient of friction between the boards is 0.663, what must be the magnitude of the compression forces (assumed to be horizontal) acting on both sides of the center board to keep it from slipping? Figure P4.91
Part of riding a bicycle involves leaning at the correct angle when making a turn, as seen below. To be stable, the force exerted by the ground must be on a line going through the center of gravity. The force on the bicycle wheel can be resolved into two perpendicular components—friction parallel to the road (this must supply the centripetal force) and the vertical normal force (which must equal the system’s weight). (a) Show that (as defined as shown) is related to the speed vand radius of curvature rof the turn in the same way as for an ideally banked roadway—that is, =tan1(v2/rg) . (b) Calculate for a 12.0-m/s turn of radius 30.0 m (as in a race).
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Why it is easier to open a door if you pull perpendicularly to the door instead of pulling at an angle?