Acart is pulled by a force of 250 n at an angle of 35 degrees above the horizontal the cart accelerates at 1.4 m/s^2 what is the mass of the cart

146 kg

Explanation: We need to start with finding the force because the given force is not including the friction caused by the angle. So first, we need to find the adjusted force after taking into account the friction.

Step 1: So, since it is being pulled to the right, we know this since it is positive, we need to find the angle and we use the sinФ function like this:

(Force)(sin(angle)) = (250N) (sin(35)) = 204.78N

Step 2: Now you are ready to find the mass. The formula is:

mass = force/acceleration

Mass = 204.78/1.4 = 146.42

Step 3: Round the answer to the nearest whole number.

Mass = 146

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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.