bishwasbh Every object, along with earth is moving at about 1200 miles per hour or about 1600 kmph at equator. As higher the latitude, lesser the velocity.
We will normally don’t feel this velocity as we will be travelling in the same velocity.
If earth stops in 5 s, objects near equator, if they need to remain in contact with the earth, will experience acceleration of about 50*3 times that due to gravity, eastwards.
This makes earth crust, stones, sand, water to be thrown with velocities as large with which one falls when dropped from a height of 10 km.
All bodies, living and non-living will collide and it’ll kill most multicellular animals, including man. Reason: Inertia.
This will be the case, even if Newton hadn’t, discovered laws of motion. Due to friction, our pieces will stop. Almost all tall buildings will collapse.
If someone is standing with a support of strong steel frame, dug deep in earth, even he ( or she) dies due to 50 g compressive force.