Ibu na ibu - nsogbu na ngwọta

Solved problems in Newton’s laws of motion – Mass, and weight

1. The weight of a 1 kg mass at the surface of the Earth is… g = 9.8 m/s2

A maara:

Ibu (m) = 1 kg

The acceleration due to gravity at the surface of the Earth (g) = 9.8 m/s2

Chọrọ: weight (w)

Ngwọta:

w = mg

m = mass (The SI unit of mass is the kilogram, kg)

g = acceleration due to gravity (The SI unit of g is m/s2)

w = weight (The SI unit of w is kg m/s2 or Newton)

Ibu ibu:

w = (1 kg)(9.8 m/s2) = 9.8 kg m/s2 = 9.8 Newton

Leekwa  Ike Kinetic - nsogbu na ngwọta

2.

(a) Draw the force of gravity (weight) that act on the object when the object is at rest on a table, as shown in figure (a).

(b) Draw the force of gravity (weight) and it’s components that act on an object sliding down an ụgbọelu chọrọ, as shown in figure (b)

Mass and weight – problems and solutions 1

ngwọta

Mass and weight – problems and solutions 2

The direction of the weight is downward toward the center of the Earth.

wx = the horizontal component of the weight and wy = the vertical component of the weight

Leekwa  Ibu Ike Ike Ike - Nsogbu na Ngwọta

3. The mass of a box is 1 kg and acceleration due to gravity is 9.8 m/s2. Find (a) weight (b) the horizontal component and the vertical component of the weight.

Mass and weight – problems and solutions 3ngwọta

Weight : w = m g = (1 kg)(9.8 m/s2) = 9.8 kg m/s2 = 9.8 Newton

The horizontal component of the weight :

wx = w mmehie 30o = (9,8 N)(0,5) = 4.9 Newton

The vertical component of the weight :

wy = w cos 30o = (9.8 N)(0.5√3) = 4.9√3 Newton

Leekwa  Mkpụrụ ndụ ihe nketa dị n'otu akụkụ - itinye nsogbu na ngwọta nke iwu mbụ nke Newton n'ọrụ

[wpdm_package id='458′]

  1. Uka na ibu
  2. Ike nkịtị
  3. Iwu ngagharị nke abụọ nke Newton
  4. Ike esemokwu
  5. Mmegharị n'elu kwụ ọtọ na-enweghị ike esemokwu
  6. Mmegharị nke ahụ abụọ nwere otu osooso ahụ n'elu elu kwụ ọtọ siri ike yana ike esemokwu
  7. Mmegharị n'elu ụgbọelu ahụ gbagọrọ agbagọ na-enweghị ike esemokwu
  8. Mmegharị n'elu ụgbọelu siri ike nke nwere ike esemokwu
  9. Mmegharị n'ime igwe mbuli elu
  10. A na-ejikọta mmegharị nke ahụ site na eriri na pulleys
  11. Ahụ abụọ nwere otu oke ọsọ ọsọ
  12. Ịgbagharị agba dị larịị - ike mmegharị okirikiri
  13. Ịgbagharị agba gburugburu - mgbanwe nke mmegharị okirikiri
  14. Mmegharị otu otu n'ime okirikiri kwụ ọtọ
  15. Ike etiti n'ime mmegharị okirikiri otu otu

Print Friendly, PDF & Email

Ahapụ a Comment