1. What is the weight of a 87.4 kg object? w=? 2.What was the average speed...

1. What is the weight of a 87.4 kg object? w=?

2.What was the average speed in km/h of a car that travels 798 km in 6.1h?

3. What net force is needed to give a 22 kg grocery cart an acceleration of 2.3 m/s² ?

4.Suppose a radio signal travels from Earth and through space at a speed of 3.0 × 10⁸ m/s. How far into space did the signal travel during the first 38.7 minutes?

5. How far away was a lightning strike if thunder is heard 5.23 seconds after seeing the flash? Assume that sound traveled at 350.0 m/s during the storm.

6.What is the acceleration of a car that moves from rest to 19.1 m/s in 10.0 s?

7. How long will be required for a car to go from a speed of 15.6 m/s to a speed of 26.7 m/s if the acceleration is 3.0 m/s²?

Expert Solution

solved using concept of motion.

genius_generous answered 2 hours ago

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