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If a car is traveling 100 km h and comes to a stop in 3 min what is the car's acceleration?
Average acceleration is a change in velocity over a period of time:
a = Δv/Δt
"a car is traveling 100 km/hr and comes to a stop..." implies that its original speed, let's call it v_0, was given by:
v_0 = 100 km / 1 hr
= 100,000 m / 3600 s
= 27.77... m/s
and its final velocity, called v_f, is
v_f = 0.
so Δv, the CHANGE in velocity, was v_f - v_0, or
Δv = 0 - 27.77... = -27.77... m/s
and Δt, the change in time, was "3 min[utes]."
Δt = 3 minutes
= 180 s
so
a = Δv/Δt
= (-27.77... m/s) / 180s
= -0.1543 m/s/s
Note that I arbitrarily chose to assign the car's initial velocity a positive sign.
What else can I help you with?
Can a bus change direction of its velocity when traveling with constant acceleration?
Yes, a bus can change the direction of its velocity when traveling with constant acceleration. This change in velocity can occur when the bus is accelerating in the opposite direction to its initial velocity. The bus will slow down, stop, and then start moving in the opposite direction.
How much force is required to stop a 100mph ball that is 145g?
To calculate the force required to stop the ball, we need to convert the mass of the ball from grams to kilograms (145g = 0.145kg). Then, we can use the formula for force: force = mass x acceleration. Given that the ball is traveling at 100mph (44.7 m/s) and comes to a stop, the acceleration would be the time it takes to stop divided by the initial velocity. So, the force required to stop the ball would be calculated using these values.
What is negative acceleration also called?
Negative acceleration is also called as deceleration.
What object moving at 30 ms takes 5 s to come to a stop what is the objects acceleration?
The acceleration of the object can be calculated using the formula: acceleration = (final velocity - initial velocity) / time Given that the final velocity is 0 m/s (since the object comes to a stop), the initial velocity is 30 m/s, and the time is 5 s, the acceleration can be found by plugging these values into the formula.
Does a car have a negative acceleration when it is leaving?
A car has negative acceleration whenever it's slowing down. It doesn't matter what stage of its trip that occurs in.
If a car traveling at 30meters per second slows to a stop in 15 seconds what was the cars acceleration?
(change in velocity)/(change in time)=avg. acceleration (-30 m/s)/(15s)= -2 m/s2
Does a car accelerate when it comes to a stop?
When the car is coming to a stop, it is decelerating--or it has negative acceleration.
Dave is traveling at 20 meters per second in a car when the car hits a tree so Dave comes to a complete stop in point 4 seconds so what is Dave's acceleration?
His acceleration is minus fifty m/s/s, or ~ 5.5g.Highly survivable if he is wearing his seat belt.
Is it a unbalanced or balanced force when you stop pushing a box and it comes to a stop?
Since there is an acceleration (a change of velocity), the forces are unbalanced.
Can a bus change direction of its velocity when traveling with constant acceleration?
Yes, a bus can change the direction of its velocity when traveling with constant acceleration. This change in velocity can occur when the bus is accelerating in the opposite direction to its initial velocity. The bus will slow down, stop, and then start moving in the opposite direction.
Cars traveling at 35 mph need approximately how many feet to stop?
about 200 feet... unless your brakes are horrible
What is the acceleration of a hockey player who is skating at 10ms and comes to a stop in 2 seconds?
-2.5 m/s/s
What do hybrid and gasoline powered cars have in common?
The main thing they have in common is they both have a gasoline engine that is used for acceleration. The mild hybrid only uses the electric motor for low speeds and when the car comes to a stop the gasoline engine shuts off till acceleration. They also share the body styles of some of the gasoline cars, an example would be the Honda Civic, the same body style but comes in a hybrid too. I think this is true of many of the models that are coming out this year 2010.
If a car traveling 30 miles per hour can stop in 50 feet how many feet will it take the same car to stop when it is travelling 20 miles per hour?
If there is constant acceleration and deceleration then it would be 33.3 ft to stop
How much force is required to stop a 100mph ball that is 145g?
To calculate the force required to stop the ball, we need to convert the mass of the ball from grams to kilograms (145g = 0.145kg). Then, we can use the formula for force: force = mass x acceleration. Given that the ball is traveling at 100mph (44.7 m/s) and comes to a stop, the acceleration would be the time it takes to stop divided by the initial velocity. So, the force required to stop the ball would be calculated using these values.
A car and a bus are moving with same kinetic energy When an equal retarding force F is applied to both the cars what will stop first?
The bus will stop first. This is because the bus has more mass compared to the car, so it will experience a smaller acceleration for the same force applied. Therefore, it will take more time for the bus to come to a complete stop compared to the car.
What is negative acceleration also called?
Negative acceleration is also called as deceleration.
