Answer:
135.2857142857143
Step-by-step explanation:
its right?
Kf xurzrusiwas ltsylslyalysuaulsjfdjDnrkshRjira
We know that
1 km-------------> 1000 m
X-----------------> 1 m
X=1/1000--------> 0.001 km
1 hour---------> 3600 sec
X---------------> 1 sec
X=1/3600--------> 0.0002777 hour
1 ft-----------> 0.3048 m
X-----------> 1 m
X=1/0.3048 ----------> 3.28084 ft
Part 1) <span>What are all three sprinters times in kilometers per hour? Round your answers to the nearest tenths.
a) </span><span>Usain Bolt 9.58 sec in 100 meter
100 meter-----------> 100*0.001------> 0.10 km
9.58 sec-------------> 9.58*(1/3600)-----> 0.0026611 hour
0.10/0.0026611----------> 37.6 km/hour
</span>b) Tyson Gay 9.69 sec in 100 meter
100 meter-----------> 100*0.001------> 0.10 km
9.69 sec-------------> 9.69*(1/3600)-----> 0.0026916 hour
0.10/0.0026916----------> 37.2 km/hour
c) Florence Griffith-Joyner 10.49 sec in 100 meter
100 meter-----------> 100*0.001------> 0.10 km
10.49 sec-------------> 10.49*(1/3600)-----> 0.0029138 hour
0.10/0.0029138----------> 34.3 km/hour
Part 2) <span>What are all three sprinters times in feet per second?
</span>
a) Usain Bolt 9.58 sec in 100 meter
100 meter-----------> 100*3.28084------> 328.084 ft
328.084 ft/9.58 sec----------> 34.25 ft/sec
b) Tyson Gay 9.69 sec in 100 meter
100 meter-----------> 100*3.28084------> 328.084 ft
328.084 ft/9.69 sec----------> 33.86 ft/sec
c) Florence Griffith-Joyner 10.49 sec in 100 meter
100 meter-----------> 100*3.28084------> 328.084 ft
328.084 ft/10.49 sec----------> 31.28 ft/sec
Part 3) <span>How much faster was Usain Bolt in the 100 meter than Tyson Gay?
9.69-9.58-------> 0.11 sec
</span>Usain Bolt was 0.11 sec faster than Tyson Gay in the 100 meter<span>
</span>
Answer: Energy equals mass times the speed of light squared.
Plz mark branliest:)
