Question

1. While cruising along a dark sketch of highway at a speed of 25 m/s, you see that a bridge ahead has been washed out. You apply the brakes and uniformly slow down to a stop in 5.0 seconds.

The velocity values are ________. (Positive/Negative)

The acceleration value is _______. (Positive/Negative)

Therefore the object must be _________. (Speeding Up/Slowing Down)

2. A poorly tuned Yugo can accelerate from rest to a speed of 28 m/s in 20 s.

The velocity values are ________. (Positive/Negative)

The acceleration value is _______. (Positive/Negative)

Therefore the object must be _________. (Speeding Up/Slowing Down)

3. A bear is sitting at rest at t=0s. At t=5s, the bear notices honey 16 m away and takes off from rest accelerating at a rate of 2 m/s2 for 4 seconds to reach the honey.

The velocity values are ________. (Positive/Negative)

The acceleration value is _______. (Positive/Negative)

Therefore the object must be _________. (Speeding Up/Slowing Down)

4. A dog runs down his driveway with an initial velocity of -5 m/s for 8 seconds, then uniformly increases his speed to -10 m/s in 5 seconds.

The velocity values are ________. (Positive/Negative)

The acceleration value is _______. (Positive/Negative)

Therefore the object must be _________. (Speeding Up/Slowing Down)

5. You are driving on the highway at a rate of 40 m/s for 10 seconds when you notice a cop in front of you. Over the next 5 seconds you uniformly slow down to 35 m/s to avoid getting a speeding ticket.

The velocity values are ________. (Positive/Negative)

The acceleration value is _______. (Positive/Negative)

Therefore the object must be _________. (Speeding Up/Slowing Down)

6. You are traveling 20 m/s when the stoplight in front of you turns red. You step on your break to uniformly slow down to a rest in 5 seconds. You are stopped at the red light for 3 seconds when the light turns green. You speed back up to 20 m/s over the next 5 seconds.

The velocity values are ________. (Positive/Negative)

The acceleration value is _______. (Positive/Negative)

Therefore the object must be _________. (Speeding Up/Slowing Down)

The velocity values are ________. (Positive/Negative)

The acceleration value is _______. (Positive/Negative)

Therefore the object must be _________. (Speeding Up/Slowing Down)

Answer 1

1.

The velocity values are Negative.

The acceleration value is Negative.

Therefore the object must be Speeding Up.

2.

The velocity values are Positive.

The acceleration value is Positive.

Therefore the object must be Slowing Down.

3.

The velocity values are Positive.

The acceleration value is Positive.

Therefore the object must be Slowing Down.

4.

The velocity values are Negative.

The acceleration value is Negative.

Therefore the object must be Speeding Up.

5.

The velocity values are Positive.

The acceleration value is Positive.

Therefore the object must be Slowing Down.

6.

The velocity values are Negative.

The acceleration value is Negative.

Therefore the object must be Speeding Up.

((I tried my very best I am sorry if any answers I have given are incorrect, but I wish you good luck on your Test/Quiz or whatever you may be currently working on at the time. This took a while.))