Question

An 8 kg object moving with an initial velocity of 4 m/s comes to rest due to friction after it travels a horizontal distance of 10 m. If the initial speed of the object is doubled, what distance will it travel before coming to rest? Use g=10m/s^2

Answer 1

The resistance of the CD player that uses a 12 V supply and draws a current of 2.5 A is calculated to be 4.8 ohms using Ohm's Law (V = IR).

Step-by-step explanation:

The question asks for the calculation of the resistance of a CD player that uses a 12 V supply and draws a current of 2.5 A. According to Ohm's Law, which states that V = IR (where V is the voltage, I is the current, and R is the resistance), the resistance can be found by rearranging the formula to R = V/I.

Therefore, the resistance (R) of the CD player is calculated as follows:

Voltage (V) = 12 V

Current (I) = 2.5 A

Resistance (R) = V/I = 12 V / 2.5 A = 4.8 Ω

The resistance of the CD player is 4.8 ohms.