Answer:
220 N
Explanation:
When a shopping cart rolls into a parked car on the street, it hits the car with a force of 220 newtons.
We need to find the force the shopping cart experiences from the car.
We know that, Newton's third law of motion states that for every action there is an equal and opposite reaction.
Hence, the shopping cart experiences a force of 220 N from the car.
Hydrogen is located in Group 1
Answer:
Explanation:
We shall represent all the displacement in terms of vector . We shall consider east as i , and north as j . south of west direction will be represented by - i - j .
displacement of 1.9 km due east
D₁ = 1.9 i
vector representing south of west = - i - j
unit vector = - i - j / √ 2
7.2 km south of west = 7.2 ( - i - j ) / √ 2
D₂ = - 5.09 ( i + j )
Total displacement
= D₁ + D₂
= 1.9 i - 5.09 ( I + J )
D = - 3.19 i - 5.09 j .
magnitude of D = √ ( 3.19² + 5.09² )
= 6 km .
Direction of D
Tanθ = 5.09 / 3.19 = 1.59
θ = 58°
So direction will be 58° south of west .
To reach the starting point , he shall have to go in opposite direction .
So he shall have to go in the direction of north of east at angle 58° by a displacement of 6 km .