<u>= 24.408 Ohms</u>
The two resistors connected in parallel, therefore to calculate the effective or total resistance we use the formula;
1/Rt = 1/R₁ + 1/R₂
= 1/52 + 1/46
Total resistance = (52 × 46) ÷ (52+46)
the answer is THERMAL
momentum conservation
75x2 = 30 x her speed
75x2/30=150/30=5m/s