two bike P and Q start from a point a long to road at 8 a.m. and 7 a.m. respectively if at 11 a.m. bikes which travel at the same speed are 120 km apart the find the speed of each bike?
1)32 km/hr
2)22 km/hr
3) 24 km/hr
4) 26 km/hr
Answers
Answered by
0
Answer: option 3
Step-by-step explanation:
Let S denotes the speed (in km/hr) of each car.
We know that
the travel duration of two cars are
11:00 a.m. - 8:00 A.M. = 3 hrs
11:00 a.m. - 7:00 A.M. = 4 hrs
Hence from above data we get as follows,
(4*S)^2 + (3*S)^2 = (120)^2
or 25*S^2 = (120)^2
or S^2 = (120/5)^2
or S^2 = (24)^2 or S = 24 (km/hr)
5 Interesting Facts About Velocity, Acceleration, and Speed
- An key contributor to acceleration is gravity. A falling object accelerates more quickly due to the Earth's gravitational pull on it.
- Therefore, if you are diving from a swimming board, you will begin at a slow pace, but gravity causes speed to increase every second.
- The first scientist to measure speed was Galileo.
- The speed of light is the greatest conceivable speed in the entire universe.
- The rate of light is 299,792,458 metres per second.
- According to Newton, a moving object's kinetic energy is inversely proportional to its mass and square of its velocity.
- The velocity of an object might vary depending on its mass.
#SPJ1
https://brainly.in/question/53948936
Similar questions