Question

Evaluate ( 64800 ms ) 2 to three significant figures and express the answer in Si units. Express your answer using three significant figures. VOC ROS? 70 AED (64800 ms ) 2 = 3.70.103

Answer 1

42.0×10² second²

Step-by-step explanation:

Here, time is given in milisecond

(64800 ms)²

= 4199040000 ms²

The SI unit is seconds

1 second = 1000 milisecond

`1\ milisecond=(1)/(1000)\ second`

`\\\Rightarrow 1\ milisecond^2=\left((1)/(1000)\right)^2\ second^2`

`4199040000\ ms^2=4199040000* \left((1)/(1000)\right)^2\ second^2=4199.04\ second^2`

42.0×10² second²