Question

A hockey puck of mass 150 g is sliding south along the ice and slows at a rate of 1.2m/s^2. What is the net
force acting on the pucks?​
(correct answer only allowed if you don't know don't answer) (the person who the beSt answer will be rewarded!!)​

Answer 1

Explanation:

here the mass of the hockey puck is given as 150g

also the retardation is given as 1.2m/s^2

here retardation is nothing but negative acceleration

hence acceleration here= -1.2m/s^2

now by the equation F=MA(mass*accelaration)

substituting the values we get

F=150g* -1.2m/s^2

converting g=kg (si unit) we get

F=0.150 KG* -1.2m/s^2

F= -1.8 newtons

Answer 2

Given:

A hockey puck of mass 150 g is sliding south along the ice and slows at a rate of 1.2m/s².

To find:

Net force on puck ?

Calculation:

• Force is a vector quantity characterized by the rate of change of momentum.

• Mathematically, it is the product of mass and acceleration.

$\therefore$ F = m × a

=> F = (150/1000) × (-1.2)

=> F = -0.18 kg m/s²

=> F = -0.18 N

So, force acting on puck is -0.18 N.