Final answer:
The correct option is a. To calculate the horizontal component of the force, use trigonometry. The vertical acceleration of the lawnmower is zero. The tension in the pull cord is equal to the weight of the lawnmower.
Step-by-step explanation:
To calculate the horizontal component of the force, we can use trigonometry. The horizontal component is given by the equation Fx = F * cos(θ), where F is the magnitude of the force and θ is the angle. To determine the vertical acceleration of the lawnmower, we need to consider the net force acting on it. In this case, the vertical acceleration will be zero since there is no vertical net force (assuming no gravitational force).
To find the tension in the pull cord, we need to consider the forces acting on the lawnmower. The tension in the pull cord will be equal to the weight of the lawnmower, which can be calculated using the equation T = m * g, where m is the mass of the lawnmower and g is the acceleration due to gravity. To measure the angular velocity of the lawnmower, we would need additional information such as the radius of the lawnmower's wheels and the linear velocity of the lawnmower.