3. Ms. Johnson can bench press 150 kg from 0.7 m from the ground to 1.5 m above the ground. a. How much weight (not mass) did Ms. Johnson lift? Put down Givens, Solving For, Equation, Substitution, Answer with Units
b. How much power did she use if she lifts the weights in 10s? Put down Givens, Solving For, Equation, Substitution, Answer with Units

Explanation:

a. Given:

m = 150 kg

a = 9.8 m/s²

Solving for: F

Equation: F = ma

Substitution: F = (150 kg) (9.8 m/s²)

F = 1470 N

b. Given:

y₀ = 0.7 m

y = 1.5 m

F = 1470 N

t = 10 s

Solving for: P

Equation: P = F Δy / Δt

Substitution: P = (1470 N) (1.5 m − 0.7 m) / 10 s

P = 117.6 W

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.