You need to lift up a 45-n object. explain the strength and direction of the force used to lift the object.

The force used to lift the object must be greater than 45 N and direction of the force applied to lift the object is upward since the object will move upwards when it is lifted.

The given parameters;

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of the mass and the acceleration of the object.

The object always move in the direction of the applied force.

Thus, we can conclude that the force used to lift the object must be greater than 45 N and direction of the force applied to lift the object is upward since the object will move upwards when it is lifted.

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More than 45 N upward!

hèllo, sorry i really need some more points so if you need this qustion answered than retype it

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.