Newton's Second Law 1
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A 12 kg rock is accelerated 3 m/s2. How much force caused this?
Step 1: variables
Which of the following is correct?
- 12 kg = a
3 m/s2 = S
F = ? - 12 kg = m
3 m/s2 = S
F = ? - 12 kg = m
3 m/s2 = a
F = ? - 12 kg = a
3 m/s2 = m
F = ?
A 12 kg rock is accelerated 3 m/s2. How much force caused this?
Step 1: Variables
12 kg = m
3 m/s2 = a
F = ?
Step 2: Formula
Which of the following is the formula we will use for this problem?
- S = D/T
- a = F/m
- F = ma
- p = mv
A 12 kg rock is accelerated 3 m/s2. How much force caused this?
Step 1: Variables
12 kg = m
3 m/s2 = a
F = ?
Step 2: Formula
F = ma
Step 3: Put in numbers
Which of the following is correct?
- F = (12kg)(3m/s2)
- F = (12kg) + (3m/s2)
- 12kg = m(3m/s2)
- F = (12kg)/(3m/s2)
A 12 kg rock is accelerated 3 m/s2. How much force caused this?
Step 1: Variables
12 kg = m
3 m/s2 = a
F = ?
Step 2: Formula
F = ma
Step 3: Put in numbers
F = (12kg)(3m/s2)
Step 4: Calculate and answer
Which of the following is correct?
- F = 4 N
- F = 36 kgm/s
- F = 15 N
- F = 36 N
A force pulls on a 20 kg sled. The sled accelerates 4 m/s2. How big was the force?
Step 1: variables
Which of the following is correct?
- 20 kg = a
4 m/s2 = S
F = ? - 20 kg = m
4 m/s2 = a
F = ? - 20 kg = a
4 m/s2 = m
F = ? - 20 kg = m
4 m/s2 = S
F = ?
A force pulls on a 20 kg sled. The sled accelerates 4 m/s2. How big was the force?
Step 1: Variables
20 kg = m
4 m/s2 = a
F = ?
Step 2: Formula
Which of the following is the formula we will use for this problem?
- F = ma
- S = D/T
- a = F/m
- p = mv
A force pulls on a 20 kg sled. The sled accelerates 4 m/s2. How big was the force?
Step 1: Variables
20 kg = m
4 m/s2 = a
F = ?
Step 2: Formula
F = ma
Step 3: Put in numbers
Which of the following is correct?
- F = (20kg)(4m/s2)
- F = (20kg) + (4m/s2)
- 20kg = m(4m/s2)
- F = (20kg)/(4m/s2)
A force pulls on a 20 kg sled. The sled accelerates 4 m/s2. How big was the force?
Step 1: Variables
20 kg = m
4 m/s2 = a
F = ?
Step 2: Formula
F = ma
Step 3: Put in numbers
F = (20kg)(4m/s2)
Step 4: Calculate and answer
Which of the following is correct?
- F = 24 N
- F = 5 N
- F = 80 N
- F = 8 kgm/s
A 4 kg rock is moved by a force and ends up speeding up at the rate of 7 m/s2. How much force was applied to the rock?
Step 1: variables
Which of the following is correct?
- 4 kg = a
7 m/s2 = S
F = ? - 4 kg = a
7 m/s2 = m
F = ? - 4 kg = m
7 m/s2 = a
F = ? - 4 kg = m
7 m/s2 = S
F = ?
A 4 kg rock is moved by a force and ends up speeding up at the rate of 7 m/s2. How much force was applied to the rock?
Step 1: variables
4 kg = m
7 m/s2 = a
F = ?
Step 2: Formula
Which of the following is the formula we will use for this problem?
- p = mv
- F = ma
- a = F/m
- S = D/T
A 4 kg rock is moved by a force and ends up speeding up at the rate of 7 m/s2. How much force was applied to the rock?
Step 1: variables
4 kg = m
7 m/s2 = a
F = ?
Step 2: Formula
F = ma
Step 3: Put in numbers
Which of the following is correct?
- 4kg = m(7m/s2)
- F = (4kg)/(7m/s2)
- F = (4kg)(7m/s2)
- F = (4kg) + (7m/s2)
A 4 kg rock is moved by a force and ends up speeding up at the rate of 7 m/s2. How much force was applied to the rock?
Step 1: variables
4 kg = m
7 m/s2 = a
F = ?
Step 2: Formula
F = ma
Step 3: Put in numbers
F = (4kg)(7m/s2)
Step 4: Calculate and answer
Which of the following is correct?
- F = 28 kgm
- F = 28 m/s
- F = 28 N
- F = 28 sec