A 4,000-kg pick-up truck travelling at 40 m/s collides with a parked car. After the collision, if the pick-up truck continues m and the car moves at 50 m/s, determine the mass of the car

It is d, all the other ones say incorrect answer .

Answer: 1.4 seconds which is the third optionexplanation: current is defined as the flow of charge per timetherefore, the equation that relates current, charge and time can be expressed as follows: i = δq / δtwhere: i is the current given = 1.8 ampereδq is the charge given = 2.5 coulombδt is the time required for the flow of the given charges to give the 1.8 ampere.substitute with the givens in the above equation to get the time as follows: 1.8 = 2.5 / δtδt = 2.5 / 1.8 = 1.38888 which is approximately 1.4 secondshope this was !

You need to calculate the string in between two masses