v- tx-tKinematics Reaction Time Chase

What is the displacement from B to C?

∆x = 3 m

What is the instantaneous acceleration at 7.5 seconds?

a = -5 m/s 2

What is the average acceleration from A to H?

a = 0 m/s 2

What is the total distance from A to H?

d = 21.5 m

What is the total displacement from A to H?

∆x = 11.5 m

What is the displacement of B?

∆x = -15 m

What is the object doing during segment C?

At Rest

DAILY DOUBLE

What is the total distance traveled?

d = 30 m

What is the average velocity for the entire trip?

v = 0 m/s

What is the average speed for entire trip?

s = 1 m/s

It was once recorded that a Jaguar left skid marks that were 290 m in length. Assuming that the Jaguar skidded to a stop with constant deceleration of 3.9 m/s 2. What was the initial speed of the Jaguar?

v i = m/s

It was once recorded that a Jaguar left skid marks that were 290 m in length. Assuming that the Jaguar skidded to a stop with constant deceleration of 3.9 m/s 2. How long did it take the Jaguar to come to a stop?

t = 12.2 s

A car traveling at 12.5 m/s slows down at a constant rate of 0.50 m/s 2 by just letting off the gas. How far does the car travel during its fifth second?

∆x = m

You drive down the road at 30 km/h for 30 minutes and then at 50 km/h for another 30 minutes. What is your average velocity?

v = 40 km/h

You drive down the road at 44 km/h for 30 minutes and then at 50 km/h for another hour. What is your average velocity?

v = 48 km/h

You are driving down the highway late one night at 18 m/s when a deer steps onto the road 37 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. How far have you traveled from the moment you see the deer and pressing the brakes?

∆x = 9 m

You are driving down the highway late one night at 18 m/s when a deer steps onto the road 37 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. Assuming constant acceleration, how long does it take for your car to come to a complete stop after you step on the brakes?

t = 1.6 s

Once you step on the brakes and assuming maximum deceleration, how far does your car travel before coming to a stop? You are driving down the highway late one night at 18 m/s when a deer steps onto the road 37 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.

∆x = 14.7 m

You are driving down the highway late one night at 18 m/s when a deer steps onto the road 37 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. Assuming maximum deceleration, how far does your car travel from the moment you see the deer and the moment you come to a complete stop?

∆x = 23.7 m

You are driving down the highway late one night at 18 m/s when a deer steps onto the road 37 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. What is largest reaction time that you can have and still safely stop without hitting the deer?

t R = 1.2 s

A jogger with constant velocity of 4.0 m/s runs by a stationary dog. Immediately, the dog begins running after the jogger with a constant acceleration of 1.5 m/s 2. List all of the givens and unknowns for the jogger.

v = 4 m/s t = ? s ∆x = ? m

A jogger with constant velocity of 4.0 m/s runs by a stationary dog. Immediately, the dog begins running after the jogger with a constant acceleration of 1.5 m/s 2. List all of the givens and unknowns for the dog.

v i = 0 m/s a = 1.5 m/s 2 v f = ? m/s t = ? s ∆x = ? m

How long does it take the dog to catch up to the jogger? A jogger with constant velocity of 4.0 m/s runs by a stationary dog. Immediately, the dog begins running after the jogger with a constant acceleration of 1.5 m/s 2.

t = 5.3 s

A jogger with constant velocity of 4.0 m/s runs by a stationary dog. Immediately, the dog begins running after the jogger with a constant acceleration of 1.5 m/s 2. How far from the spot where the dog was sitting has the jogger gone when the dog catches up to her?

∆x = 21 m

A jogger with constant velocity of 4.0 m/s runs by a stationary dog. Immediately, the dog begins running after the jogger with a constant acceleration of 1.5 m/s 2. How fast is the dog moving when it catches up to the jogger?

v f = 8 m/s