Speed = (acceleration) times (time)Acceleration = gravity = 9.8 meters (32.2 feet) per second2Speed = 10g = 98 meters (322 feet) per second
Acceleration = change in velocity/time a = (v - u) /t where a= acceleration, v= velocity, u= initial velocity & t= time. u = 121 m/s v = 98 m/s t = 12 m/s a = (98 - 121) /12 a = -23/12 a = -1.91667 m/s2
Average acceleration during the time interval = (change on speed) / (time for the change) =(98 - 121) / (12) = -23/12 = negative (1 and 11/12) meters per second2
b. -1.92 m/s2Minutes per second is not a unit of velocity. If the question meant meters per second, the answer is correct.
30.990 metres/sec
The difference in weight is due to the acceleration of the elevator. Using the formula F = ma, where F is the force (weight), m is the mass, and a is the acceleration, we can calculate the acceleration to be approximately 1.02 m/s^2.
Speed = (acceleration) times (time)Acceleration = gravity = 9.8 meters (32.2 feet) per second2Speed = 10g = 98 meters (322 feet) per second
Acceleration = change in velocity/time a = (v - u) /t where a= acceleration, v= velocity, u= initial velocity & t= time. u = 121 m/s v = 98 m/s t = 12 m/s a = (98 - 121) /12 a = -23/12 a = -1.91667 m/s2
Average acceleration during the time interval = (change on speed) / (time for the change) =(98 - 121) / (12) = -23/12 = negative (1 and 11/12) meters per second2
The acceleration due to gravity is 9.8 meters per second squared, not 98. This means that an object in free fall will increase its speed by 9.8 m/s every second.
The mass of an object stays the same no matter where it is, as it still has the same amount of matter in it (the definition of mass is the amount of matter in an object). However, the weight of an object changes based on the gravitational pull of the celestial body it is on. The equation W = m * g where W is the weight, m is the mass of the object, and g is the gravitational acceleration of the celestial body (which changes from body to body) shows that an object's weight would change with the planet's gravitational acceleration. For example, the gravitational acceleration is 9.8 m/s^2 on Earth, and the gravitational acceleration on Jupiter is about 25m/s^2. So let's work out the equations with a 100 kg mass. Earth: W=mg W=100kg*9.8m/s^2 W=98 kg/m/s^2 or 98 newtons Jupiter: W=mg W=100kg*25m/s^2 W=250 kg/m/s^2 or 250 newtons So, (250/98 = ~2.5) things weigh about 2.5 times more on Jupiter, but have the same mass.
The mass of an object stays the same no matter where it is, as it still has the same amount of matter in it (the definition of mass is the amount of matter in an object). However, the weight of an object changes based on the gravitational pull of the celestial body it is on. The equation W = m * g where W is the weight, m is the mass of the object, and g is the gravitational acceleration of the celestial body (which changes from body to body) shows that an object's weight would change with the planet's gravitational acceleration. For example, the gravitational acceleration is 9.8 m/s^2 on Earth, and the gravitational acceleration on Jupiter is about 25m/s^2. So let's work out the equations with a 100 kg mass. Earth: W=mg W=100kg*9.8m/s^2 W=98 kg/m/s^2 or 98 newtons Jupiter: W=mg W=100kg*25m/s^2 W=250 kg/m/s^2 or 250 newtons So, (250/98 = ~2.5) things weigh about 2.5 times more on Jupiter, but have the same mass.
A bad fuel line can cause a 98 Toyota Camry to stall during acceleration. This happens when the line can not get proper fuel to the engine.
if its in freefall, constant force down = mass (kg) * gravitational acceleration (about 9.8 on earth), so 100 kg body gives 100 * 9.8 = 98 newtons, subtract your 7 n = 91 n for acceleration .
b. -1.92 m/s2Minutes per second is not a unit of velocity. If the question meant meters per second, the answer is correct.
The rate is 9.8m/sec
You would need to lift the 5kg box to a height of approximately 20 meters to give it 98 J of gravitational potential energy. This calculation is based on the formula: GPE = mgh, where m is the mass (5kg), g is the acceleration due to gravity (9.8 m/s^2), and h is the height.