Question

50 points for answer

Answer 1

Step-by-step explanation:

N (Newton is the unit of force).

a weight of 1.5 N means that gravity creates a force of 1.5 N downwards.

now, the buoyancy effect of objects with less density than water (the object pushes away a volume of water that weighs more than the object) overcomes this weight force and overall pushes upwards with a force of 6 N.

that means the buoyant force is in total

1.5 N + 6 N = 7.5 N upwards

because this buoyant force has to neutralize the weight force of 1.5 N, and then still has a remaining force of 6 N to press upwards. so, the force upwards is in total 7.5 N.

Answer 2

7.5 N acting upward direction

Step-by-step explanation:

The buoyant force is the force exerted by a fluid on an object submerged in it and is equal to the weight of the fluid displaced by the object. In this case, the buoyant force acting on the dog toy can be calculated as follows:

Buoyant force = weight of fluid displaced by the object

Since the dog toy is submerged under water, it displaces a volume of water equal to its own volume. The weight of this water is equal to the buoyant force acting on the toy.

The weight of the dog toy is 1.5 N, and the net force acting on it is 6 N upwards. This means that the buoyant force acting on the toy is:

Buoyant force = net force + weight of the object

Buoyant force = 6 N +1.5 N

Buoyant force = 7.5 N

Therefore, the buoyant force acting on the dog toy is 7.5 N, and it is acting in the upward direction to balance the weight of the toy and keep it afloat.