The speed of an object is the distance divided by the time of travel. The speed of the person running 400 meters in 2 minutes is 3.3 m/s.
Speed is a physical quantity used to measure the distance covered per unit time. Speed is a scalar quantity thus, having magnitude only. The rate of speed is called velocity. Velocity is a vector quantity.
Speed in physics is the ratio of the distance covered per unit time. Thus, speed can have the units m/s, Km/hr, ft/s miles/s etc. As the time of the travel increases, speed is said to be decreasing.
The distance covered = 400 meters.
time = 2 minutes = 2 × 60 s = 120 s
Speed = distance / time
= 400 m/ 120 s
= 3.3 m/s.
Therefore, the speed is 3.3 m/s.
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Answer:
3.3m/s
Explanation:
speed =Distance /Time
x=400m
t=2mintues=2min*60sec/min=120seconds
S=400m/120s
S=3.33333...
therefore speed = 3.3m/s
(1)velocity (2)speed (3)acceleration (4) displacement
yes
evaporation starts on the surface
density
salinity
temperature
wind
Coriolis effect
Thermohaline circulation is driven by density, salinity, and temperature. These factors cause changes in the water's density, leading to the creation of ocean currents.
Thermohaline circulation is primarily driven by density, salinity, and temperature. Salinity and temperature affect the density of ocean water, with higher salinity and lower temperature leading to a denser substance. When water in an area of the ocean becomes denser than the surrounding water, it sinks, creating a current. This process is global, meaning it involves the entire ocean system and thus is an essential part of Earth's climate.
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