An object of mass 50 kg- starting from rest- accelerates constantly and attains a speed of 10 ms in 5 seconds- The force applied on the object is - N-A- 50 NB- 100 NC- 10 ND- 5 N

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Question

An object of mass 50 kg, starting from rest, accelerates constantly and attains a speed of 10 $\frac{m}{s}$ in 5 seconds. The force applied on the object is ___ N.

50 N

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100 N

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10 N

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5 N

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Solution

The correct option is B 100 N
Initial velocity (u) = 0, final velocity (v) = 10 m/s, time (t) = 5 s, Mass (m) = 50 kg,

Force (F) = ?

We know that, Force F = m $\frac{v - u}{t}$
Therefore, $F = 50 \times \frac{10 - 0}{5} m / s^{2}$
F = 100 N

Thus, the force applied on the body is = 100 N

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An object of mass 50 kg, starting from rest, accelerates constantly and attains a speed of 10 m/s in 5 seconds. The force applied on the object is ___ N.

The correct option is B 100 NInitial velocity (u) = 0, final velocity (v) = 10 m/s, time (t) = 5 s, Mass (m) = 50 kg, Force (F) = ? We know that, Force F = m v−ut Therefore, F=50×10−05m/s2 F = 100 N Thus, the force applied on the body is = 100 N

An object of mass 50 kg, starting from rest, accelerates constantly and attains a speed of 10 $\frac{m}{s}$ in 5 seconds. The force applied on the object is ___ N.

The correct option is B 100 N
Initial velocity (u) = 0, final velocity (v) = 10 m/s, time (t) = 5 s, Mass (m) = 50 kg,

Force (F) = ?

We know that, Force F = m $\frac{v - u}{t}$
Therefore, $F = 50 \times \frac{10 - 0}{5} m / s^{2}$
F = 100 N

Thus, the force applied on the body is = 100 N