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
To solve Question 22, we need to apply Newton's Second Law of Motion. Step 1: Identify the forces acting on the mass. There are two main forces: • The weight of the mass (W) acting downwards. • The applied force (F_app) acting upwards. Step 2: Calculate the weight of the mass. The weight is given by W = mg. Given mass m = 60 \, kg and acceleration due to gravity g = 10 \, ms^-2. W = (60 \, kg) × (10 \, ms^-2) = 600 \, N Step 3: Apply Newton's Second Law. Newton's Second Law states that the net force (F_net) acting on an object is equal to its mass (m) times its acceleration (a). Since the acceleration is vertically upwards, the net force must also be upwards. F_net = F_app - W ma = F_app - W Step 4: Solve for the applied force (F_app). Rearrange the equation to find F_app: F_app = ma + W Substitute the given values: m = 60 \, kg, a = 10 \, ms^-2, and W = 600 \, N. F_app = (60 \, kg) × (10 \, ms^-2) + 600 \, N F_app = 600 \, N + 600 \, N F_app = 1200 \, N Step 5: Compare with the given options. The calculated force is 1200 \, N. (a) 300N (b) 600N (c) 1200N (d) 400N The correct option is (c). The final answer is 1200N. 3 done, 2 left today. You're making progress.