Each question must have a diagram with a sign of convention The solution must follow the GRASP method Formula should follow steps:formula with letter variables,than substitution variables,last the answer

1. During take-off, an aircraft accelerates at 3.4 m/s . The total mass of the aircraft is 8.0 x 10 kg. Calculate: aj the net force acting on the aircraft during the acceleration b) the speed of the aircraft after 5.0 seconds of acceleration. 21 A person on a bicycle is moving East at 15 mis on a horizontal road. The total mass of the person plus the bicycle is 9.0 x 10 kg. The person stops pedaling and comes to rest in 12 s. Calculate the average force causing the bicycle to slow down. 3. A mass m = 2.50 kg is being accelerated upwards by the tension in a string, as shown. The magnitude of the acceleration a - 4.00 m/s-. Calculate the magnitude of the tension in the string 4. A person stands in an elevator. The person has a mass of 6.0 x 10kg. Calculate the apparent weight of the person when the elevator is accelerating downwards at 2.5 m/s 5. A block of wood of mass m - 250 g is being pulled along a surface by a force F = 20 N. The force of friction between the block and the surface has a magnitude of 15 N as shown. Calculate: F- 20 N a) the acceleration of the block. b) the distance moved, starting from rest, in 5.0 F - 15 N 6. A large football player student (1.0 x 10* kg) applies a 6.0 x 10 N force to another equally burly student (1.0 x 10 kg) sitting on a sled (13.2 kg). If sliding friction and air resistance (drag) is 99.5 N, find the acceleration of the sled. In addition, how much force does the football player need to apply to the ground to accomplish this feat? Remember, he needs to get himself moving too