Title: Newtons second law of motion
1Newtons second law of motion
2Newtons second law of motion
3(No Transcript)
4Small mass - BIG ACCELERATION
5BIG MASS - Small acceleration
6(No Transcript)
7A 52-kg water skier is being pulled by a
speedboat. The force causes her to accelerate at
2 m/s2. Calculate the net force that causes this
acceleration.
F MA
8A 52-kg water skier is being pulled by a
speedboat. The force causes her to accelerate at
2 m/s2. Calculate the net force that causes this
acceleration.
F MA
F 52 kg X 2 m/s2
9A 52-kg water skier is being pulled by a
speedboat. The force causes her to accelerate at
2 m/s2. Calculate the net force that causes this
acceleration.
F MA
F 52 kg X 2 m/s2
F 104 kgm/s2
10A 52-kg water skier is being pulled by a
speedboat. The force causes her to accelerate at
2 m/s2. Calculate the net force that causes this
acceleration.
F MA
F 52 kg X 2 m/s2
F 104 kgm/s2
or
F 104 N
11What is the net force on a 1,000 kg elevator
accelerating at 2 m/s2.
F MA
12What is the net force on a 1,000 kg elevator
accelerating at 2 m/s2.
F MA
F 1000 kg X 2 m/s2
13What is the net force on a 1,000 kg elevator
accelerating at 2 m/s2.
F MA
F 1000 kg X 2 m/s2
F 2000 kgm/s2
14What is the net force on a 1,000 kg elevator
accelerating at 2 m/s2.
F MA
F 1000 kg X 2 m/s2
F 2000 kgm/s2
or
F 2000 N
15What is the net force needed to accelerate a
55-kg cart at 15 m/s2.
F MA
16What is the net force needed to accelerate a
55-kg cart at 15 m/s2.
F MA
F 55 kg X 15 m/s2
17What is the net force needed to accelerate a
55-kg cart at 15 m/s2.
F MA
F 55 kg X 15 m/s2
F 825 kgm/s2
18What is the net force needed to accelerate a
55-kg cart at 15 m/s2.
F MA
F 55 kg X 15 m/s2
F 825 kgm/s2
or
F 825 N