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Friction and Gravity Problem Worksheet Name___________________________ F= ma Force (N) = mass (kg) *acceleration (m/s2) Section__________________________ Net Force = The sum of all forces Acceleration of Gravity : 9.8 m/s2 Use the formulae above to complete the problems below. 1. If an object with a mass of 100 kg is pulled with a rope, accelerating at 0.5 m/s², what would be the tension (force) on the rope? 2. What is the weight in Newtons of a 60 kg person standing on earth? 3. How much force is needed to accelerate a 3 kg skateboard at 5 m/s2? 4. What is the weight of a rock that has a mass of 7 kg? 5. A 250 kg trailer is being pulled by a truck. The force causes the trailer to accelerate at 4 m/s2. What is the net force that causes this acceleration? BONUS If an object with a mass of 1500 kg is accelerated at 5 G’s (remember 1 G = 9.8 m/s2), what is the object’s force?