Question
In: Physics
Question: You're driving down a country road at 25 m/s, when a deer suddenly starts crossing...
Question: You're driving down a country road at 25 m/s, when a deer suddenly starts crossing the road. As soon as you react, you hit the brakes to decelerate the car at a rate of 4.20 m/s2. If the deer is 77 m ahead of you, do you hit the deer with your car?
Activity: Develop a method for calculating your average reaction time using only a ruler or meter stick, NO STOPWATCH (you will need a partner to help you). Use your reaction time (the time it would take you to hit the brakes once you saw the deer) to solve the physics question listed above, showing your calculations in the Data Analysis section. Write up an individual lab report using the correct format, shown on the next page.
Solutions
genius_generous answered 2 years agoRelated Solutions
Question: You're driving down a country road at 25 m/s, when a deer suddenly starts crossing...
Question: You're driving down a country road at
25 m/s, when a deer suddenly starts crossing the road. As soon as
you react, you hit the brakes to decelerate the car at a rate of
4.20 m/s2. If the deer is 77 m ahead of you, do you hit
the deer with your car?
Activity: Develop a method for calculating your
average reaction time using only a ruler or meter stick,
NO STOPWATCH (you will need a partner to help...
You're driving down the highway late one night at 20 m/s when a deer steps onto...
You're driving down the highway late one night at 20 m/s when a
deer steps onto the road 39 m in front of you. Your reaction time
before stepping on the brakes is 0.50 s , and the maximum
deceleration of your car is 12 m/s2 . How much distance is between
you and the deer when you come to a stop? What is the maximum speed
you could have and still not hit the deer?
You're driving down the highway late one night at 15 m/s when a deer steps onto...
You're driving down the highway late one night at 15 m/s when a
deer steps onto the road 42 m in front of you. Your reaction time
before stepping on the brakes is 0.50 s , and the maximum
deceleration of your car is 11 m/s^2 .
1.
How much distance is between you and the deer when you come to a
stop?
Express your answer using two significant figures.
2.
What is the maximum speed you could have and...
You’re driving down the road one day at 22.0 m/s when you see something in the...
You’re driving down the road one day at 22.0 m/s when you see
something in the road 45 m in front of you. Your reaction time
before hitting the brake is 0.450 s, and the maximum deceleration
on your car is 11 m/s2.
Question
Answer
✘ How many meters is between you and the object when
you some to a stop?
(Tol: ± 0.1)
Answer Incorrect by more than 10%.
✘ What is the maximum speed in m/s you could have
and...
A 2000-kg car is traveling at 20 m/s on a horizontal road and the engine suddenly...
A 2000-kg car is traveling at 20 m/s on a horizontal road and
the engine suddenly is broken down. The brakes immediately are
applied and the car skids to a stop in 4.0 s with a constant
acceleration because of kinetic friction. What is the coefficient
of kinetic friction between the tires and road?
Question 1: Bob is driving his car at 20 m/s down a hill with a slope...
Question 1: Bob is driving his car at 20 m/s down a hill with a
slope of 5 degrees. When a deer suddenly jumps out of the woods
onto the road, he slams on the brakes, and the car skids to a stop.
The mass of the car is 1500 kg, and the coefficient of kinetic
friction between the tires and the road is μk = 0.816.
a) (3 points) Draw a free-body diagram for the car.
b) (3 points)...
1. Suppose you are driving a 500-kg Zamboni when it suddenly breaks down, forcing you to...
1. Suppose you are driving a 500-kg Zamboni when it suddenly
breaks down, forcing you to get out and push. You apply a force of
85 N on the machine, which experiences a constant frictional force
of 5 N. How long (in seconds) will it take to push the Zamboni the
remaining 40 m?
2. The coefficient of static friction between Kylo Ren's shoes
and the floor of Starkiller Base is 0.21. How large (in Newtons) is
the frictional force...
A child rides down the road on his bike at a speed 4.3 m/s with a...
A child rides down the road on his bike at a speed 4.3 m/s with
a balloon tied to its handle bars. At a time t = 0 s, the balloon
comes untied and floats into the air. It accelerates with the
vector:
a(t) = ( -0.31 m/s2 e(-0.072093 s-1 t
) , 4.71 m/s2 - 0 m/s3 t )
[Note: The acceleration coefficient in the x-direction should be
v0? (= -0.3099 m/s2) where
v0 is the initial speed and...
A 1200-kg car moving at 25 m/s suddenly collides with a stationary car of mass 1,002 If the...
A 1200-kg car moving at 25 m/s suddenly collides with
a stationary car of mass 1,002 If the two vehicles lock
together, what energy was lost to heat?
2) A racecar is driving at 40 m/s when a rabbit 100 m away runs across...
2) A racecar is driving at 40 m/s when a rabbit 100 m away runs
across the track. It takes 0.8 seconds for the driving to slam on
his breaks. If the car decelerates at 8.0 m/s2, how much
time does the bunny have to get out of the way?
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