If an object’s mass is doubled while the applied force remains constant, what happens to its acceleration according to the formula for force?
The acceleration is halved
Newton's second law of motion is stated by the formula \(F = ma\), where F is the net applied force, m is the mass of the body, and a is the acceleration produced.
Rearranging this gives \(a = \frac{F}{m}\). With F held constant, acceleration a is inversely proportional to mass m.
Let the original mass be m and the acceleration be \(a_1 = \frac{F}{m}\). When the mass is doubled to 2m, the new acceleration is \(a_2 = \frac{F}{2m} = \frac{1}{2} \cdot \frac{F}{m} = \frac{a_1}{2}\).
Hence, when the mass is doubled at constant force, the acceleration is halved.
A ball is released from rest at the top of an inclined smooth plane of length 5 cm. After reaching the bottom it travels horizontally on a smooth surface. How much distance will it travel horizontally? (Neglect the frictional forces as both the plane and surface are smooth)
Which example indicates that forces acting on an object are balanced?
A student pushes two carts, one heavy and one light, with the same force. According to Newton's second law, what will happen to their accelerations?
A force of 60 N is used to push a box, causing it to accelerate at 3 m/s². What is the mass of the box?
Why is it difficult to push a heavy box from rest, according to the first law of motion?
What is the effect of unbalanced forces on an object at rest?
Which scenario best demonstrates an unbalanced force acting on an object?
If an object continues moving in the same direction at the same speed, what can be inferred about the forces acting on it?
Which scenario does NOT correctly represent an action-reaction pair as per Newton's third law?
When a net force acts on a body, what does Newton's second law predict will happen to the body?
Which of the following is correct?
I. The mass of an object is a measure of its inertia
II. In an isolated system the total momentum remains conserved
A 20.0 kg block is placed on a smooth horizontal table. A horizontal force of 12.0 Newton is applied to the block. The position of the block at 5.0 sec is
A moving body covers 10 m distance along straight path in each second. The body is under which type of motion?
A subway train starts from rest at a station and accelerates at a rate of 3 ms-2 for 10s. It then runs at a constant speed for 20s and decelerates at 5 ms-2 unit it stops at the next station. The distance between the two stations is:
In a desert, a beetle's motion sends fast longitudinal pulses, vL = 150 ms-1, and slower transverse pulses, vS = 50 ms-1, along the sand's surface. The sand scorpion has eight legs; spread roughly in a circle of 5 cm diameter, intercepts the faster longitudinal pulses 4.0 ms earlier than the slower transverse pulse. The pray is located at a distance of: