Topic: Dynamics
Concepts: Forces in mechanics
Solution:
Friction points in the direction to oppose relative motion between two surfaces.
Since the rear wheel is being powered and turned clockwise such that its bottom point is moving backward, friction on the rear wheel points in the forward direction.
Since the front wheel is being pushed forward, friction on the front wheel points in the backward direction. Thus, the answer is A.
F=ma Training Program
Group (2026)
Individual (2026)
1D elastic collision 1D inelastic collision 5 kinematics equations Angular kinematics Atwood machine Buoyant force Circular motion Circular orbits Conservation of angular momentum Conservation of energy Conservation of linear momentum Dimensional analysis Effective spring constant Elliptical orbits Energy dissipation Error propagation Fictitious forces Fma: Collisions Fma: Dynamics Fma: Energy Fma: Fluids Fma: Gravity Fma: Kinematics Fma: Oscillatory Motion Fma: Other Fma: Rigid Bodies Fma: System of Masses Forces in mechanics Free fall Inclined plane Kinetic energy Limiting cases Mass-spring system Moments of inertia Motion graphs Newton's laws Power Projectile motion Relative velocity Rolling motion Simple harmonic motion Statics Torque Torque from weight Work-energy theorem
Leave a Reply