The cars velocity after it travels 20 m is 4 because you have to divide it by the miles that the car is traveling and the 4 miles from the rest; and your finally answer being 5
Answer: 5
K.E=0.5*mv²
v=square root 2ke/m
v= square root 2*8J/1 kg
v= 4 m/s
Answer:
The motion of the ball relative to the ground is stationary
The motion of the ball relative to the wagon is backwards
Explanation:
To describe the motion of the ball relative to the ground, we note that
Assuming the ball is perfectly round and rotate freely, then we have
Force on the ball due to motion of the wagon = 0 N,
Then by the law of motion, an object will remain at rest when no force is applied to it
Therefore, apart from rotation of the ball, it will remain no displacement relative to the ground.
The motion of the ball relative to the wagon
Relative to the wagon, the ball appears to be moving in the opposite direction to the wagon, that is backwards.
Answer:
Explanation:
Arrangements of cells, when two or more cells are connected together they form what is called a battery
There are two ways cells can be connected
1. Parallel
2. Series
Find attached a sketch of serial arrangement
