Answer:
a)
b)
Explanation:
Given that
Initial velocity u =0 m/s
Speed at 5 s v= 282 m/s
Rocket accelerated up to 5 s :
We know that
v= u + at
282= 0+ a x 5
So the acceleration
Rocket come to rest in 1.4 s :
Final velocity of rocket v=0 m/s
Initial velocity = 282 m/s
v= u + at
0= 282 - a x 1.4
So the deceleration
Answer:
you will get charge
Explanation:
Most shocks happen because you and the car have picked up opposite charges. Leaving your seat separates these charges, creating the potential for a static shock. Touching the metal of the car as you get out lets the charge balance out by flowing harmlessly through your hand
Answer:
52433.1
Explanation: you just multiply the numbers
Answer:
The ball is in the air for 3.628 sec
Explanation:
We can find speed in the "y" direction when the ball lands with this equation:
Where: because the ball is thrown horizontally
because gravity is a vector that points down in the "y" direction
because the ball lands on the ground
Then:
because the ball is falling and that means speed in the "y" direction is a vector that points down
Now we can calculate the time with next equation:
Then:
Finally t = 3.628 sec
The force applied moves the object in the direction of the force. Suppose if the force is applied to the moving object in that case object moves in the direction of the stronger force.