This physics problem tests your understanding of fundamental physical laws and their applications. The step-by-step solution below breaks down the problem using relevant equations and physical reasoning.
ScanSolve AI Answer
Welcome back — missed you this week. Step 1: Convert the initial velocity from kilometers per hour to meters per second. u = 72 km/hr × 1000 m1 km × 1 hr3600 s u = (72 × 1000)/(3600) m/s u = (72000)/(3600) m/s u = 20 m/s Step 2: Identify the final velocity and time. The bus is brought to rest, so the final velocity v = 0 m/s. The time taken is t = 10 s. Step 3: Use the first equation of motion to find the acceleration. The formula is v = u + at. Rearrange to solve for a: a = (v - u)/(t) Substitute the values: a = 0 m/s - 20 m/s10 s a = -20 m/s10 s a = -2 m/s^2 Step 4: State the deceleration. Deceleration is the magnitude of the negative acceleration. Deceleration = |a| = |-2 m/s^2| = 2 m/s^2. The deceleration/retardation of the bus is 2 m/s^2. Send me the next one 📸