Answer:
Acceleration of train needed to avoid collision = -0.9 m/s²
Explanation:
Here both trains are similar with 1000 m apart with same speed.
So one train has to move 500 m before stopping just to avoid collision.
We have
Initial velocity, u = 30 m/s
Acceleration , a = ?
Displacement, s = 500 m
Final velocity, v = 0 m/s
We have equation of motion v²= u² + 2as
Substituting
v²= u² + 2as
0²= 30² + 2 x a x 500
a = -0.9 m/s²
Acceleration of train needed to avoid collision = -0.9 m/s²
She misses. She should have accelerated faster in order to get to her target.
A force may cause an object to turn about a pivot. The turning effect of a force is called the moment of the force. Moments act about a pivot in a clockwise or anticlockwise direction.
Yes or no because I don't know and im tired
Answer: holding the ball in the air without moving it
Explanation:
When the ball goes up it’s potential energy
