B) Para obter a velocidade do movel no instante 1-5s, escrevemos a função horária de velocidad v-10tv - 10 5-v-50 m/s Poderiamos também usar a fórmula de Torricelli vv+2gas 0+2 10 125-2500-5050 m/s Logo, a velocidade ao atingir o solo é de 50 m/s

The crate will move in the left direction with a force of 15 N

Explanation:

Balanced force is defined as the force that gets cancelled out when equal forces are acting in the opposite direction. The net force on the system comes out to be 0.

Unbalanced force is defined as the force which does not get cancelled out because unequal forces act on the system in opposite direction. The motion of the object is in the direction of net force.

According to the question:

A crate is being pushed 10 N to the right.

Another force is being applied of amount 25 N to the left.

Net force acting on the object = 25 - 10 = 15 N (to the left)

Hence, the crate will move in the left direction with a force of 15 N