PHYSICAL QUANTITY
Distance and path: formulas and units of measurement
Distance and path: symbol S, l, unit m. Formulas and explanations for Mechanics.
S,\ lS, l\text{м}meter
KEY CONNECTIONS
Formulas
S=vtS = vt
S=\frac{v_0+v}{2}\,tS = (v₀ + v)t / 2
S=v_0t\pm\frac{at^2}{2}S = v₀t ± at²/2
S=\frac{v^2-v_0^2}{\pm 2a}S = (v² − v₀²) / (±2a)
S_{\text{торм}}=\frac{v_0^2}{2\mu g}Sторм = v₀² / (2μg)
NOTATION
Quantities in formulas
- S
- Distance - the length of the space between selected points.
- v
- Velocity is the rate and direction of change of a body's position.
- t
- Time is a quantity characterizing the duration and sequence of events.
- v_0
- Initial speed - the speed of the body at the selected initial moment.
- a
- Acceleration is the rate of change of a body's velocity.
- S_{\text{торм}}
- Braking distance is the distance covered from the start of braking to stopping.
- \mu
- Friction coefficient is a characteristic of the resistance to movement of contacting surfaces.
- g
- Gravity acceleration is the acceleration of a body under the influence of gravity without taking into account the resistance of the medium.
THEORY
Related Lessons
Reference frame, trajectory and distance travelled7 class · 18 min→Mechanical work and power7 class · 20 min→Frame of reference and uniform motion9 class · 26 min→Sound, echo and resonance9 class · 24 min→Lenses, the eye and optical instruments9 class · 30 min→SI units and unit conversions10 class · 14 min→Forces and equilibrium10 class · 28 min→Potential and voltage10 class · 24 min→Lenses and diffraction11 class · 28 min→
PRACTICE
Related tasks
Mechanical motion7 class · 18 problems→Work, power and energy7 class · 27 problems→Kinematics9 class · 27 problems→Mechanical waves and sound9 class · 18 problems→Light phenomena9 class · 36 problems→SI and magnitude scales10 class · 12 problems→Dynamics10 class · 32 problems→Electrostatics10 class · 30 problems→Optics11 class · 24 problems→
DIRECTORY