The weight of the block is (mass x gravity) = (50kg x 9.8 m/s²) = 490 N
The NET vertical force on the block is (490N down) + (600N up) = 110N up.
Acceleration = (net force) / (mass)
Acceleration = (110N up) / (50 kg)
<em>Acceleration = 2.2 m/s² up</em>
Answer:constant acceleration slows down constant velocity
Explanation:
Answer D
In alkali earth metals reacrivity increases from top to bottom (opposite of b)
This is because as you go down, the electron shells increase by 1 shell. The farther away a shell is from the nucleus, the higher its tendency to react.
D is true because the more reactive an alkali metal is, the more vigorous the reaction will be with water.
