Answer. Answer: The answer is
2.22 m/sec
.
How do you find the acceleration?
Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation
a = Δv/Δt
. This allows you to measure how fast velocity changes in meters per second squared (m/s^2). Acceleration is also a vector quantity, so it includes both magnitude and direction.
What is the speed of a walking person in m/s if the person travels 1000 m in 20 minutes?
|
Question Answer
|
What is the speed of a walking person in m/s if the person travels 1000 m in 20 minutes?
0.80 m/s
|
A ball rolls down a ramp for 15 seconds. If the initial velocity of the ball was 0.8 m/sec and the final velocity was 7 m/sec, what was the acceleration of the ball ? 0.413 m/s2
|
What is the difference between speed and velocity?
The reason is simple. Speed is the time rate at which an object is moving along a path, while velocity is
the rate and direction of an object’s movement
. Put another way, speed is a scalar value, while velocity is a vector.
What is the speed of 50 meters in 10 seconds?
Answer:
5 meter/second
.
How far will you travel in 3 minutes running at a rate of 6m S?
1 Expert Answer
Kam, There are 60 seconds in 1 minute. So, 3 minutes is the same as 3×60=180 seconds. If you travel 6 m/s (meaning after 1 second, you’ve run 6 meters), then after 3 minutes (or 180 seconds), you have run 6×180=
1080 meters
.
What is the formula for speed and acceleration?
|
Displacement Δx=xf−xi
|
Average speed Average speed=–s=Total distanceElapsed time
|
Instantaneous speed Instantaneous speed=|v(t)|
|
Average acceleration –
a=ΔvΔt=vf−v0tf−t0
|
Instantaneous acceleration a(t)=dv(t)dt
|
What are the 3 ways of acceleration?
There are three ways an object can accelerate:
a change in velocity, a change in direction, or a change in both velocity and direction
.
What constant acceleration is required to increase the speed?
An acceleration of
8.8 ft/s^2
is required to increase the speed from 26 mi/hr to 56 mi/hr in 5 s.
What are 5 differences between speed and velocity?
|
Speed Velocity
|
Speed is a scalar quantity Velocity is a vector quantity.
|
Speed ascertains how fast a body moves. Velocity ascertains the object’s speed and the direction it takes while moving.
|
What are the similarities and differences between speed and velocity?
Speed and velocity both represent a way to measure the change in position of an object relative to time. In fact, for
a straight line motion
, the speed and velocity of an object are the same (since distance and displacement will be the same). Speed and velocity are measured in the same units: meters per second or m/s.
What is constant speed?
An object is travelling at a steady or constant speed
when its instantaneous speed has the same value throughout its journey
. For example, if a car is travelling at a constant speed the reading on the car’s speedometer does not change.
How fast is a car going if it travels 400m in 20 seconds?
Answer: If the car travels 400m in 20sec, the it is moving with a speed of 400m/20sec i.e,
20m/sec
.
What is the speed of a car that travels 52 km in 2 hours?
26 km/h
is the answer.
What is the speed of a car traveling 400 m in 20 minutes?
Answer: 400m in 20s by using the formula: average speed = distance traveled / elapsed time = 400m/20s =
20m/s
.
What are the 4 types of acceleration?
Any change in the velocity of an object results in an acceleration:
increasing speed
(what people usually mean when they say acceleration), decreasing speed (also called deceleration or retardation ), or changing direction (called centripetal acceleration ).
