A72 kg sled is pulled forward from rest by a snowmobile and accelerates at 2.0m/s^2( forward) for 5.0 seconds. the force of friction acting on sled is 120 n (backwards). the total mass of a snowmobile and driver is 450 kg. the drag force acting on snowmobile is 540 n (backwards). determine the tension in the rope and the force exerted by the snowmobile that pushes the sled forward.

Order the sequence of ideas that lead to marie curies discovery of radioactive elements number the events in chronological order starting with the oldest

Mass (kg) force (n) 5 25 10 50 15 75 20 100 a student was trying to find the relationship between mass and force. he placed four different masses on a table and pulled them using a spring scale. the table shows the different masses used in the experiment and the force required to pull each mass. the student concluded that more force was required to pull heavier objects. what comment would you make regarding his conclusion? a) no clear relation can be observed between mass and force from the data. b) there is a direct proportion between the mass and force listed in the table. c) gravity should have been taken into account while performing the experiment. d) there is an inverse proportion between the mass and force listed in the table.

Física: un futbolista patea hacia el arco con una velocidad de 15m/ah, calcular: a)el alcance para un ángulo de tiro de 25º, b) el tiempo que el balón permanece en el aire.