Ace Pace Physical Science 10 1118 Detailed Solutions

For the first problem, focus on applying Newton’s laws of motion to calculate the force acting on an object. Begin by identifying the mass and acceleration, then use the formula F = ma to find the result. This will give you the required force needed to move the object at the specified acceleration.

Next, in the energy calculation section, remember to use the work-energy principle. When solving for kinetic energy, the equation KE = 1/2 mv² is key. Ensure you use the correct values for mass and velocity to get the accurate energy value for the object in motion.

In the final part, which involves gravitational potential energy, use the formula PE = mgh. The mass, gravitational acceleration, and height should be identified before performing the calculation. This will help determine the energy stored in the object due to its position above the ground.