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miss Akunina [59]
2 years ago
11

A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 6.96 m/s. The car is a distan

ce d away. The bear is 23.3 m behind the tourist and running at 10.3 m/s. The tourist reaches the car safely. What is the maximum possible value for d
Physics
1 answer:
Slav-nsk [51]2 years ago
6 0

The tourist reaches the car safely. The maximum possible value for d will be 44.6 m.

<h3>What is the distance?</h3>

Distance is a numerical representation of the distance between two objects or locations.

The distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.

When the bear just touches the tourist, let T be the time.

\rm T= \frac{D}{v_1-v_2} \\\\ T=\frac{23.3}{10.3-6.96} \\\\ T=6.67 sec

The tourist must arrive at the car inside this window in order to be safe.

d≤speed of tourist × time

d≤6.69 × 6.67

d≤44.6 m

Hence, the maximum possible value for d will be 44.6 m.

To learn more about the distance refer to the link;

brainly.com/question/26711747

#SPJ1

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Alona [7]

Answer:

Weight

Explanation:

"An object will float if the buoyancy force exerted on it by the fluid balances its weight, i.e. if FB=mg F B = mg . But the Archimedes principle states that the buoyant force is the weight of the fluid displaced. So, for a floating object on a liquid, the weight of the displaced liquid is the weight of the object."

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4 0
3 years ago
A bicycle pedal is pushed straight downwards by a foot with a 16 Newton force. The shaft of the pedal is 20 cm long. If the shaf
BartSMP [9]

Answer:

2.56 N*m

Explanation:

Torque is force times distance, with the force being perpendicular to the distance.

If the force and distance are not perpendicular, a projection of one of the two must be used instead.

We will use the projection of the length of the shaft upon a perpendicular of the force applied. This will have a magnitude of:

Lh = L * cos(a) (I name it Lh because it is a horizontal projection in this case)

Lh = 0.2 * cos(π/5) = 0.16 m

Then:

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T = 16 * 0.16 = 2.56 N*m

6 0
3 years ago
Two cars are traveling on a desert road between three consecutive poles, as shown in the figure. After 5.1 s, they are side by s
Ksenya-84 [330]
There's no info about the cars starting off differently, so as far as we know they have been side by side all the way. 
<span>So from the last telephone pole: </span>
<span>(a) and (b): the displacement of both cars is 65.5m
the average speed for both car is 65.5m/5.0s = 13.1m/s</span>
7 0
3 years ago
HELP ME PLZ
Nadusha1986 [10]

Answer: 1200 000 J = 1.2 MJ

Explanation: Ek = 0.5 mv² = 0.5 · 1500 kg· (40 m/s)²

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3 years ago
What does a tree do to maintain homeostasis during the winter months?
grin007 [14]

Answer:

During dormancy, a tree's metabolism, energy consumption, and growth all slow down significantly in order to endure the harsh season of winter when water and sunlight are more scarce.

Explanation:

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3 years ago
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