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Ulleksa [173]
2 years ago
6

A car travels 100 km to the east. If the first half of the distance is driven at 50 km/h and the second half at 100 km/h, what i

s the average velocity
Physics
1 answer:
Lina20 [59]2 years ago
8 0

First half:

50 km at 50 km/hr ... 1 hour

Second half:

50 km at 100 km/hr ... 1/2 hour

Total distance = 100 km

Total time = 1.5 hours

Average speed = (100 km) / (1.5 hrs)

Average speed = 66 and 2/3 km/hr

Average velocity = 66 and 2/3 km/hr East

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Explanation:

Given

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Since Car X is most massive so acceleration associated with it will be minimum

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3 years ago
Factors that influence fluid pressure are depth and “ “<br> of the fluid.
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Explanation:

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3 years ago
What is the moment of inertia of a 2.0 kg, 20-cm-diameter disk for rotation about an axis (a) through the center, and (b) throug
FinnZ [79.3K]

Answer:

(a) I=0.01 kg.m²

(b) I=0.03 kg.m²

Explanation:

Given data

Mass of disk M=2.0 kg

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To Find

(a) Moment of inertia through the center of disk

(b) Moment of inertia through the edge of disk

Solution

For (a) Moment of inertia through the center of disk

Using the equation of moment  of Inertia

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For (b) Moment of inertia through the edge of disk

We can apply parallel axis theorem for calculating moment of inertia

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8 0
3 years ago
The acceleration of gravity is -9.8 m/s2. A sling shot fires a rock straight up into the air with a speed of +39.2 m/s. 1. what
Vanyuwa [196]

Given that,

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v = u +at

Here, a = -g

v = u-gt

v = (39.2)-(9.8)(2)

v = 19.6 m/s

So, its velocity after 2 seconds is 19.6 m/s.

4 0
2 years ago
What should you do if you discover food is being stored at the wrong temperatures?
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If a food worker realizes that food is being kept at the incorrect temperature, he or she should immediately report it to their manager and politely request the customer to allow them some time to remake their order because it has been messed up.

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