A 5.20-N force is applied to a 1.05-kg object to accelerate it rightwards across a friction-free surface. determine the acceleration.

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4.95 m/s/s

Explanation:

Upon neglecting air resistance, there are three forces acting upon the object. The up and downforce balance each other and the acceleration is caused by the applied force. The net force is 5.20 N, right (equal to the only rightward force - the applied force). So the acceleration of the object can be computed using Newton's second law.

a = Fnet / m = (5.20 N, right) / (1.05 kg) = 4.95 m/s/s, right

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

it has to be b, about 97 percent.