2. 4 The kinetic energy of the athlete at position mathrm(D) is 1600 mathrm(~J) . mass of athlete =50 mathrm(~kg) Calculate the speed of the athlete at position D. Use the equation: [ ( speed )=sqrt((2 times ( kinetic energy ))/( ( mass ))) ] Choose the unit from the box. [3 marks] mathrm(m) / mathrm(s) mathrm(J) / mathrm(kg) mathrm(J) / mathrm(s) Speed = Unit

## Step 1:We are given the mass and the kinetic energy . We need to find the speed of the athlete at position .## Step 2:The formula for speed in terms of kinetic energy and mass is given by:### ## Step 3:Substitute the given values into the formula:### ## Step 4:Perform the calculation to find the speed:### ### ### ## Step 5:Choose the correct unit for speed from the given options. The correct unit for speed is .