269967
From certain height ' \(h\) ' two bodies are projected horizontally each with velocity v. One body is projected towards North and the other body is projected towards east. Their separation on reaching the ground
269968
An object is projected horizontally from a top of the tower of height \(h\). The line joining the point of projection and point of striking on the ground makes an angle \(45^{\circ}\) with ground,Then with what velocity the object strikes the ground
1 \(\sqrt{\frac{11 \mathrm{gh}}{2}}\)
2 \(\sqrt{\frac{9 g h}{2}}\)
3 \(\sqrt{\frac{7 \mathrm{gh}}{2}}\)
4 \(\sqrt{\frac{5 g h}{2}}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{R}=\mathrm{u} \sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}, V=\sqrt{u^{2}+2 g h}\)
Motion in Plane
269969
A ball is thrown horizontally from a cliff such that it strikes the ground after \(5 \mathrm{~s}\). The line of sight makes an angle \(37^{\circ}\) with the horizontal. The initial velocity of projection in \(\mathrm{ms}^{-1}\) is
1 50
2 \(\frac{100}{\sqrt{3}}\)
3 \(\frac{100}{\sqrt{2}}\)
4 \(\frac{100}{3}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{T}=\sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}\) and \(\mathrm{R}=\mathrm{uT}\)
Motion in Plane
269970
An object is launched from a cliff \(20 \mathrm{~m}\) above the ground at an angle of \(30^{\circ}\) above the horizontal with an initial speed of \(30 \mathrm{~m} / \mathrm{s}\). How far does the object travel before landing on the ground? (in metre)
269967
From certain height ' \(h\) ' two bodies are projected horizontally each with velocity v. One body is projected towards North and the other body is projected towards east. Their separation on reaching the ground
269968
An object is projected horizontally from a top of the tower of height \(h\). The line joining the point of projection and point of striking on the ground makes an angle \(45^{\circ}\) with ground,Then with what velocity the object strikes the ground
1 \(\sqrt{\frac{11 \mathrm{gh}}{2}}\)
2 \(\sqrt{\frac{9 g h}{2}}\)
3 \(\sqrt{\frac{7 \mathrm{gh}}{2}}\)
4 \(\sqrt{\frac{5 g h}{2}}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{R}=\mathrm{u} \sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}, V=\sqrt{u^{2}+2 g h}\)
Motion in Plane
269969
A ball is thrown horizontally from a cliff such that it strikes the ground after \(5 \mathrm{~s}\). The line of sight makes an angle \(37^{\circ}\) with the horizontal. The initial velocity of projection in \(\mathrm{ms}^{-1}\) is
1 50
2 \(\frac{100}{\sqrt{3}}\)
3 \(\frac{100}{\sqrt{2}}\)
4 \(\frac{100}{3}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{T}=\sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}\) and \(\mathrm{R}=\mathrm{uT}\)
Motion in Plane
269970
An object is launched from a cliff \(20 \mathrm{~m}\) above the ground at an angle of \(30^{\circ}\) above the horizontal with an initial speed of \(30 \mathrm{~m} / \mathrm{s}\). How far does the object travel before landing on the ground? (in metre)
269967
From certain height ' \(h\) ' two bodies are projected horizontally each with velocity v. One body is projected towards North and the other body is projected towards east. Their separation on reaching the ground
269968
An object is projected horizontally from a top of the tower of height \(h\). The line joining the point of projection and point of striking on the ground makes an angle \(45^{\circ}\) with ground,Then with what velocity the object strikes the ground
1 \(\sqrt{\frac{11 \mathrm{gh}}{2}}\)
2 \(\sqrt{\frac{9 g h}{2}}\)
3 \(\sqrt{\frac{7 \mathrm{gh}}{2}}\)
4 \(\sqrt{\frac{5 g h}{2}}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{R}=\mathrm{u} \sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}, V=\sqrt{u^{2}+2 g h}\)
Motion in Plane
269969
A ball is thrown horizontally from a cliff such that it strikes the ground after \(5 \mathrm{~s}\). The line of sight makes an angle \(37^{\circ}\) with the horizontal. The initial velocity of projection in \(\mathrm{ms}^{-1}\) is
1 50
2 \(\frac{100}{\sqrt{3}}\)
3 \(\frac{100}{\sqrt{2}}\)
4 \(\frac{100}{3}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{T}=\sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}\) and \(\mathrm{R}=\mathrm{uT}\)
Motion in Plane
269970
An object is launched from a cliff \(20 \mathrm{~m}\) above the ground at an angle of \(30^{\circ}\) above the horizontal with an initial speed of \(30 \mathrm{~m} / \mathrm{s}\). How far does the object travel before landing on the ground? (in metre)
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Motion in Plane
269967
From certain height ' \(h\) ' two bodies are projected horizontally each with velocity v. One body is projected towards North and the other body is projected towards east. Their separation on reaching the ground
269968
An object is projected horizontally from a top of the tower of height \(h\). The line joining the point of projection and point of striking on the ground makes an angle \(45^{\circ}\) with ground,Then with what velocity the object strikes the ground
1 \(\sqrt{\frac{11 \mathrm{gh}}{2}}\)
2 \(\sqrt{\frac{9 g h}{2}}\)
3 \(\sqrt{\frac{7 \mathrm{gh}}{2}}\)
4 \(\sqrt{\frac{5 g h}{2}}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{R}=\mathrm{u} \sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}, V=\sqrt{u^{2}+2 g h}\)
Motion in Plane
269969
A ball is thrown horizontally from a cliff such that it strikes the ground after \(5 \mathrm{~s}\). The line of sight makes an angle \(37^{\circ}\) with the horizontal. The initial velocity of projection in \(\mathrm{ms}^{-1}\) is
1 50
2 \(\frac{100}{\sqrt{3}}\)
3 \(\frac{100}{\sqrt{2}}\)
4 \(\frac{100}{3}\)
Explanation:
\(\operatorname{Tan} \theta=\frac{\mathrm{h}}{\mathrm{R}}, \mathrm{T}=\sqrt{\frac{2 \mathrm{~h}}{\mathrm{~g}}}\) and \(\mathrm{R}=\mathrm{uT}\)
Motion in Plane
269970
An object is launched from a cliff \(20 \mathrm{~m}\) above the ground at an angle of \(30^{\circ}\) above the horizontal with an initial speed of \(30 \mathrm{~m} / \mathrm{s}\). How far does the object travel before landing on the ground? (in metre)
